Common Weakness Enumeration

CWE-122

Allowed

Heap-based Buffer Overflow

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

3350 vulnerabilities reference this CWE, most recent first.

CVE-2026-93536 (GCVE-0-2026-93536)

Vulnerability from cvelistv5 – Published: 2026-10-28 16:33 – Updated: 2026-11-06 18:32
VLAI
Title
X.Org Server GestureBuildSprite Use-After-Free
Summary
A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code.
Severity
5.3 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 18:23 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 16:26
Credits
4nibhal working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93536",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-06T18:23:20.674729Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-06T18:32:09.687Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "4nibhal working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T16:26:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A use after free caused by missing lifecycle management of gesture sprites in\u0026nbsp;\u003cspan\u003eGestureBuildSprite() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code.\u003c/span\u003e"
            }
          ],
          "value": "A use after free caused by missing lifecycle management of gesture sprites in\u00a0GestureBuildSprite() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T16:33:33.815Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/efcfd8acc754c5ac4b2555ff375dd5101d735b0a"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server GestureBuildSprite Use-After-Free",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93536",
    "datePublished": "2026-10-28T16:33:33.815Z",
    "dateReserved": "2026-09-18T09:08:10.294Z",
    "dateUpdated": "2026-11-06T18:32:09.687Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93523 (GCVE-0-2026-93523)

Vulnerability from cvelistv5 – Published: 2026-10-28 16:16 – Updated: 2026-11-07 04:55
VLAI
Title
X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write
Summary
A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 00:00 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 16:13
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93523",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-06T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-07T04:55:55.144Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T16:13:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.\u003c/p\u003e"
            }
          ],
          "value": "A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T16:16:42.058Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/37a1847a60c6799aecf163a5cfa40077a9002675"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93523",
    "datePublished": "2026-10-28T16:16:42.058Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-07T04:55:55.144Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93522 (GCVE-0-2026-93522)

Vulnerability from cvelistv5 – Published: 2026-10-28 16:03 – Updated: 2026-11-05 18:54
VLAI
Title
X.Org Server Glamor CopyArea Heap Buffer Overflow
Summary
A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 18:52 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 9 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 15:53
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93522",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-05T18:52:18.066954Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-05T18:54:01.703Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "9",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T15:53:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context.\u003c/p\u003e"
            }
          ],
          "value": "A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T16:03:56.072Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/ad26c26bf795e6464f74c8ef5bb1d41403d877ab"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server Glamor CopyArea Heap Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93522",
    "datePublished": "2026-10-28T16:03:56.072Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-05T18:54:01.703Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93521 (GCVE-0-2026-93521)

Vulnerability from cvelistv5 – Published: 2026-10-28 15:37 – Updated: 2026-11-09 17:00
VLAI
Title
X.Org Server RandR ChangeProviderProperty Heap Buffer Overflow
Summary
A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:11 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 15:11
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93521",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-09T16:11:36.357536Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-09T17:00:49.964Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T15:11:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA buffer overflow in RandR\nChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.\u003c/p\u003e\u003cbr\u003e"
            }
          ],
          "value": "A buffer overflow in RandR\nChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T15:37:43.432Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/5dc9efd5a199717b53f70b9c6cd336a522370e46"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server RandR ChangeProviderProperty Heap Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93521",
    "datePublished": "2026-10-28T15:37:43.432Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-09T17:00:49.964Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93520 (GCVE-0-2026-93520)

Vulnerability from cvelistv5 – Published: 2026-10-28 14:59 – Updated: 2026-11-07 04:55
VLAI
Title
X.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds Write
Summary
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 00:00 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 14:45
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93520",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-06T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-07T04:55:53.988Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T14:45:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A heap buffer overflow caused by mismatching size calculations between\u0026nbsp;\u003cspan\u003eXkbAllocNames and  \u003c/span\u003e\u003cspan\u003eChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.\u003c/span\u003e"
            }
          ],
          "value": "A heap buffer overflow caused by mismatching size calculations between\u00a0XkbAllocNames and  ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T14:59:50.140Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/b941a473e06f26a407a9adb15759be79f7418e86"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "X.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds Write",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93520",
    "datePublished": "2026-10-28T14:59:50.140Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-07T04:55:53.988Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93519 (GCVE-0-2026-93519)

Vulnerability from cvelistv5 – Published: 2026-10-28 14:41 – Updated: 2026-11-05 18:51
VLAI
Title
X.Org Server XFixes Pointer Barrier Event List Buffer Overflow
Summary
A buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 18:48 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.orgg xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.orgg:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 14:33
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93519",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-05T18:48:49.864770Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-05T18:51:15.136Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.orgg",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.orgg:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T14:33:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.\u003c/p\u003e"
            }
          ],
          "value": "A buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T14:41:33.873Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/1f42cc1f00d9c6d46978ae82dba8a52f4d902369"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server XFixes Pointer Barrier Event List Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93519",
    "datePublished": "2026-10-28T14:41:33.873Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-05T18:51:15.136Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93518 (GCVE-0-2026-93518)

Vulnerability from cvelistv5 – Published: 2026-10-28 14:32 – Updated: 2026-11-05 18:43
VLAI
Title
X.Org Server XKB ResizeKeyType Numeric Truncation
Summary
An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 18:42 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.org xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 13:55
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93518",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-05T18:42:31.829284Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-05T18:43:29.043Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T13:55:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An integer truncation issue in \u003cspan\u003eXkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.\u003c/span\u003e"
            }
          ],
          "value": "An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-175",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-175 Code Inclusion"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T14:32:01.702Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/89101a6c6618f543d7502f2077c7ef1a507af256"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server XKB ResizeKeyType Numeric Truncation",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93518",
    "datePublished": "2026-10-28T14:32:01.702Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-05T18:43:29.043Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93517 (GCVE-0-2026-93517)

Vulnerability from cvelistv5 – Published: 2026-10-28 13:16 – Updated: 2026-11-05 18:30
VLAI
Title
X.Org Server GLX RenderLarge Heap Buffer Overflow
Summary
A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause crashes or code execution in X server context.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 18:29 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA
References
Impacted products
Vendor Product Version
x.orgg xorg-x11-server Affected: 0 , < 21.1.25 (rpm)
    cpe:2.3:a:x.orgg:xorg-x11-server:*:*:*:*:*:*:*:*
Create a notification for this product.
x.org xwayland Affected: 0 , < 24.1.14 (rpm)
    cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-28 13:11
Credits
Anonymous working with TrendAI Zero Day Initiative
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93517",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-05T18:29:53.620632Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-05T18:30:21.407Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "xorg-x11-server",
          "product": "xorg-x11-server",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.orgg",
          "versions": [
            {
              "lessThan": "21.1.25",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "xwayland",
          "product": "xwayland",
          "repo": "https://gitlab.freedesktop.org/xorg/xserver",
          "vendor": "x.org",
          "versions": [
            {
              "lessThan": "24.1.14",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.orgg:xorg-x11-server:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.1.25",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "24.1.14",
                  "versionStartIncluding": "0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Anonymous working with TrendAI Zero Day Initiative"
        }
      ],
      "datePublic": "2026-10-28T13:11:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA heap buffer overflow in handling\u0026nbsp;GLX\nRenderLarge request\u0026nbsp;where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14\u0026nbsp;that could be\u0026nbsp;be triggered by an authenticated X client could cause crashes or code execution in X server context.\u003c/p\u003e"
            }
          ],
          "value": "A heap buffer overflow in handling\u00a0GLX\nRenderLarge request\u00a0where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14\u00a0that could be\u00a0be triggered by an authenticated X client could cause crashes or code execution in X server context."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-175",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-175 Code Inclusion"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T13:16:39.431Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/2abe4632d793314d3d5f28c19583fb76019f5ce4"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "X.Org Server GLX RenderLarge Heap Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2026-93517",
    "datePublished": "2026-10-28T13:16:39.431Z",
    "dateReserved": "2026-09-18T08:46:56.692Z",
    "dateUpdated": "2026-11-05T18:30:21.407Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-93479 (GCVE-0-2026-93479)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:40 – Updated: 2026-10-29 16:59
VLAI
Title
NGINX map directive and regex matching vulnerability
Summary
A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact:  This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 (Critical)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 03:57 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
f5 CNA
References
Impacted products
Vendor Product Version
F5 NGINX Plus Affected: 37.1.0 , < 37.1.0.1 (custom)
Affected: 37.0.0 , < 37.0.5.1 (custom)
Affected: R36 , < * (custom)
Affected: R35 , < * (custom)
Affected: R34 , < * (custom)
Affected: R33 , < * (custom)
Create a notification for this product.
F5 NGINX Open Source Affected: 1.31.2 , < 1.31.7 (custom)
Affected: 1.30.0 , < 1.30.6 (custom)
Create a notification for this product.
Date Public
2023-01-01 00:00
Credits
F5 acknowledges Matt Suiche of Tolmo, Inc., Mateusz Gierblinski, LemonTea, and Toan Pham of "Team Orca, Sea Security" for bringing this issue to our attention and following the highest standards of coordinated disclosure.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-93479",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-15T03:57:00.464550Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-15T10:31:15.685Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "The map directive with regex matching"
          ],
          "product": "NGINX Plus",
          "vendor": "F5",
          "versions": [
            {
              "lessThan": "37.1.0.1",
              "status": "affected",
              "version": "37.1.0",
              "versionType": "custom"
            },
            {
              "lessThan": "37.0.5.1",
              "status": "affected",
              "version": "37.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "*",
              "status": "affected",
              "version": "R36",
              "versionType": "custom"
            },
            {
              "lessThan": "*",
              "status": "affected",
              "version": "R35",
              "versionType": "custom"
            },
            {
              "lessThan": "*",
              "status": "affected",
              "version": "R34",
              "versionType": "custom"
            },
            {
              "lessThan": "*",
              "status": "affected",
              "version": "R33",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "modules": [
            "The map directive with regex matching"
          ],
          "product": "NGINX Open Source",
          "vendor": "F5",
          "versions": [
            {
              "lessThan": "1.31.7",
              "status": "affected",
              "version": "1.31.2",
              "versionType": "custom"
            },
            {
              "lessThan": "1.30.6",
              "status": "affected",
              "version": "1.30.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "F5 acknowledges Matt Suiche of Tolmo, Inc., Mateusz Gierblinski, LemonTea, and Toan Pham of \"Team Orca, Sea Security\" for bringing this issue to our attention and following the highest standards of coordinated disclosure."
        }
      ],
      "datePublic": "2023-01-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eA vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map\u0027s regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.\u003c/span\u003e\u003cbr\u003e\u003cbr\u003eImpact:\u0026nbsp;\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.\u003c/span\u003e\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map\u0027s regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.\n\nImpact:\u00a0\nThis vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only.\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.2,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-29T16:59:16.953Z",
        "orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
        "shortName": "f5"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://my.f5.com/manage/s/article/K000162607"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "NGINX map directive and regex matching vulnerability",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eTo mitigate this vulnerability, do not use unnamed captures. Use named captures instead and limit their usage to the block with the regex match.\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "To mitigate this vulnerability, do not use unnamed captures. Use named captures instead and limit their usage to the block with the regex match."
        }
      ],
      "x_generator": {
        "engine": "F5 SIRTBot v1.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
    "assignerShortName": "f5",
    "cveId": "CVE-2026-93479",
    "datePublished": "2026-10-14T14:40:27.107Z",
    "dateReserved": "2026-09-30T21:56:14.601Z",
    "dateUpdated": "2026-10-29T16:59:16.953Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-92842 (GCVE-0-2026-92842)

Vulnerability from cvelistv5 – Published: 2026-09-25 21:11 – Updated: 2026-09-28 13:31
VLAI
Title
OOB read / info leak in convert.* stream filters when line-break-chars contains NUL
Summary
The convert.base64-encode, convert.quoted-printable-encode and convert.quoted-printable-decode stream filters accept a line-break-chars option whose length is tracked separately from the string itself. The filter constructors duplicate the value with pestrdup(), which stops at the first NUL byte, while keeping the original length. When the filter later emits a line break it copies the recorded length out of the truncated allocation, reading past its end and placing adjacent heap bytes into the filter output.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 12:56 UTC
CWE
Assigner
php CNA
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 8.2.* , < 8.2.34 (semver)
Affected: 8.3.* , < 8.3.35 (semver)
Affected: 8.4.* , < 8.4.26 (semver)
Affected: 8.5.* , < 8.5.11 (semver)
Create a notification for this product.
Credits
@geeknik (GitHub) Nora Dossche Jakub Zelenka
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-92842",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-28T12:56:55.648676Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-28T13:31:31.256Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "ext-standard",
          "product": "PHP",
          "vendor": "PHP Group",
          "versions": [
            {
              "lessThan": "8.2.34",
              "status": "affected",
              "version": "8.2.*",
              "versionType": "semver"
            },
            {
              "lessThan": "8.3.35",
              "status": "affected",
              "version": "8.3.*",
              "versionType": "semver"
            },
            {
              "lessThan": "8.4.26",
              "status": "affected",
              "version": "8.4.*",
              "versionType": "semver"
            },
            {
              "lessThan": "8.5.11",
              "status": "affected",
              "version": "8.5.*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "@geeknik (GitHub)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Nora Dossche"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Jakub Zelenka"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe \u003ccode\u003econvert.base64-encode\u003c/code\u003e, \u003ccode\u003econvert.quoted-printable-encode\u003c/code\u003e and \u003ccode\u003econvert.quoted-printable-decode\u003c/code\u003e stream filters accept a \u003ccode\u003eline-break-chars\u003c/code\u003e option whose length is tracked separately from the string itself. The filter constructors duplicate the value with \u003ccode\u003epestrdup()\u003c/code\u003e, which stops at the first NUL byte, while keeping the original length. When the filter later emits a line break it copies the recorded length out of the truncated allocation, reading past its end and placing adjacent heap bytes into the filter output.\u003c/p\u003e"
            }
          ],
          "value": "The convert.base64-encode, convert.quoted-printable-encode and convert.quoted-printable-decode stream filters accept a line-break-chars option whose length is tracked separately from the string itself. The filter constructors duplicate the value with pestrdup(), which stops at the first NUL byte, while keeping the original length. When the filter later emits a line break it copies the recorded length out of the truncated allocation, reading past its end and placing adjacent heap bytes into the filter output."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122 Heap-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T21:11:57.236Z",
        "orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
        "shortName": "php"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/php/php-src/security/advisories/GHSA-88hq-2827-7pg6"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "OOB read / info leak in convert.* stream filters when line-break-chars contains NUL",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
    "assignerShortName": "php",
    "cveId": "CVE-2026-92842",
    "datePublished": "2026-09-25T21:11:57.236Z",
    "dateReserved": "2026-09-17T02:52:30.905Z",
    "dateUpdated": "2026-09-28T13:31:31.256Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation

Pre-design: Use a language or compiler that performs automatic bounds checking.

Mitigation
Architecture and Design

Use an abstraction library to abstract away risky APIs. Not a complete solution.

Mitigation MIT-10
Operation Build and Compilation

Strategy: Environment Hardening

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-11
Operation Build and Compilation

Strategy: Environment Hardening

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation
Implementation

Implement and perform bounds checking on input.

Mitigation
Implementation

Strategy: Libraries or Frameworks

Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.

Mitigation
Operation

Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.

CAPEC-92: Forced Integer Overflow

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

← Back to the CWE list