CVE-2026-9365 (GCVE-0-2026-9365)

Vulnerability from cvelistv5 – Published: 2026-05-24 07:45 – Updated: 2026-05-26 14:27 X_Open Source
VLAI
Title
Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow
Summary
A vulnerability has been found in Ettercap up to 0.8.3. The affected element is the function FUNC_DECODER of the file src/dissectors/ec_gg.c of the component GG Dissector. The manipulation of the argument gg leads to heap-based buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 0.8.4 is sufficient to fix this issue. The identifier of the patch is feeae6fa366e01a3dd9f1857ec6aae847b2ae00c. It is suggested to upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 14:27 UTC
CWE
Assigner
VulDB CNA
Impacted products
Vendor Product Version
n/a Ettercap Affected: 0.8.0
Affected: 0.8.1
Affected: 0.8.2
Affected: 0.8.3
Unaffected: 0.8.4
    cpe:2.3:a:ettercap:ettercap:*:*:*:*:*:*:*:*
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-9365",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-26T14:27:48.199395Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-26T14:27:57.793Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ettercap:ettercap:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "GG Dissector"
          ],
          "product": "Ettercap",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "0.8.0"
            },
            {
              "status": "affected",
              "version": "0.8.1"
            },
            {
              "status": "affected",
              "version": "0.8.2"
            },
            {
              "status": "affected",
              "version": "0.8.3"
            },
            {
              "status": "unaffected",
              "version": "0.8.4"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "dapickle (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been found in Ettercap up to 0.8.3. The affected element is the function FUNC_DECODER of the file src/dissectors/ec_gg.c of the component GG Dissector. The manipulation of the argument gg leads to heap-based buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 0.8.4 is sufficient to fix this issue. The identifier of the patch is feeae6fa366e01a3dd9f1857ec6aae847b2ae00c. It is suggested to upgrade the affected component."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5.1,
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-24T07:45:11.192Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-365328 | Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/365328"
        },
        {
          "name": "VDB-365328 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/365328/cti"
        },
        {
          "name": "Submit #813142 | Ettercap \u003c=v0.8.4 Heap-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/813142"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/Ettercap/ettercap/issues/1306"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/Ettercap/ettercap/pull/1307"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/Ettercap/ettercap/commit/feeae6fa366e01a3dd9f1857ec6aae847b2ae00c"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/Ettercap/ettercap/"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-23T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-05-23T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-05-23T12:33:44.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-9365",
    "datePublished": "2026-05-24T07:45:11.192Z",
    "dateReserved": "2026-05-23T10:28:40.541Z",
    "dateUpdated": "2026-05-26T14:27:57.793Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-9365",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-26T14:27:48.199395Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-26T14:27:54.769Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "cpes": [
                "cpe:2.3:a:ettercap:ettercap:*:*:*:*:*:*:*:*"
              ],
              "modules": [
                "GG Dissector"
              ],
              "product": "Ettercap",
              "vendor": "n/a",
              "versions": [
                {
                  "status": "affected",
                  "version": "0.8.0"
                },
                {
                  "status": "affected",
                  "version": "0.8.1"
                },
                {
                  "status": "affected",
                  "version": "0.8.2"
                },
                {
                  "status": "affected",
                  "version": "0.8.3"
                },
                {
                  "status": "unaffected",
                  "version": "0.8.4"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "dapickle (VulDB User)"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A vulnerability has been found in Ettercap up to 0.8.3. The affected element is the function FUNC_DECODER of the file src/dissectors/ec_gg.c of the component GG Dissector. The manipulation of the argument gg leads to heap-based buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 0.8.4 is sufficient to fix this issue. The identifier of the patch is feeae6fa366e01a3dd9f1857ec6aae847b2ae00c. It is suggested to upgrade the affected component."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
                "version": "4.0"
              }
            },
            {
              "cvssV3_1": {
                "baseScore": 5.6,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 5.6,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 5.1,
                "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-122",
                  "description": "Heap-based Buffer Overflow",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-119",
                  "description": "Memory Corruption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-24T07:45:11.192Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-365328 | Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/vuln/365328"
            },
            {
              "name": "VDB-365328 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/365328/cti"
            },
            {
              "name": "Submit #813142 | Ettercap \u003c=v0.8.4 Heap-based Buffer Overflow",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/813142"
            },
            {
              "tags": [
                "exploit",
                "issue-tracking"
              ],
              "url": "https://github.com/Ettercap/ettercap/issues/1306"
            },
            {
              "tags": [
                "issue-tracking",
                "patch"
              ],
              "url": "https://github.com/Ettercap/ettercap/pull/1307"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/Ettercap/ettercap/commit/feeae6fa366e01a3dd9f1857ec6aae847b2ae00c"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://github.com/Ettercap/ettercap/"
            }
          ],
          "tags": [
            "x_open-source"
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-23T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-05-23T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-05-23T12:33:44.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-9365",
        "datePublished": "2026-05-24T07:45:11.192Z",
        "dateReserved": "2026-05-23T10:28:40.541Z",
        "dateUpdated": "2026-05-26T14:27:57.793Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.