certfr_avis - certfr-2026-avi-1394

CERTFR-2026-AVI-1394

Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans Citrix NetScaler ADC et Gateway. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Citrix	NetScaler ADC	NetScaler ADC versions 14.1-FIPS antérieures à 14.1-73.49 FIPS
Citrix	NetScaler ADC	NetScaler ADC versions 14.1.x antérieures à 14.1-73.49
Citrix	NetScaler ADC	NetScaler ADC versions 13.1-FIPS antérieures à 13.1-NDcPP 13.1.37.286
Citrix	NetScaler ADC	NetScaler ADC versions 13.1.x antérieures à 13.1-64.32
Citrix	NetScaler Gateway	NetScaler Gateway versions 14.1.x antérieures à 14.1-73.49
Citrix	NetScaler Gateway	NetScaler Gateway versions 13.1.x antérieures à 13.1-64.32

References

Title

Publication Time

Tags

Bulletin de sécurité Citrix CTX697263	2026-10-26	vendor-advisory
Protection de l'accès de gestion de NetScaler contre les vulnérabilités PHP CVE-2026-109618 et CVE-2026-109619	-	other

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "NetScaler ADC versions 14.1-FIPS ant\u00e9rieures \u00e0 14.1-73.49 FIPS",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler ADC versions 14.1.x ant\u00e9rieures \u00e0 14.1-73.49",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler ADC versions 13.1-FIPS ant\u00e9rieures \u00e0 13.1-NDcPP 13.1.37.286",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler ADC versions 13.1.x ant\u00e9rieures \u00e0 13.1-64.32",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler Gateway versions 14.1.x ant\u00e9rieures \u00e0 14.1-73.49",
      "product": {
        "name": "NetScaler Gateway",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler Gateway versions 13.1.x ant\u00e9rieures \u00e0 13.1-64.32",
      "product": {
        "name": "NetScaler Gateway",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-109619",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-109619"
    },
    {
      "name": "CVE-2026-109618",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-109618"
    }
  ],
  "initial_release_date": "2026-10-27T00:00:00",
  "last_revision_date": "2026-10-27T00:00:00",
  "links": [
    {
      "title": "Protection de l\u0027acc\u00e8s de gestion de NetScaler contre les vuln\u00e9rabilit\u00e9s PHP CVE-2026-109618 et CVE-2026-109619 ",
      "url": "https://community.citrix.com/techzone-blogs/110_security-updates/protecting-netscaler-management-access-from-php-cve-2026-109618-cve-2026-109619-r1640/"
    }
  ],
  "reference": "CERTFR-2026-AVI-1394",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-10-27T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix NetScaler ADC et Gateway. Elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix NetScaler ADC et Gateway",
  "vendor_advisories": [
    {
      "published_at": "2026-10-26",
      "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX697263",
      "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697263\u0026articleURL=Citrix_Security_Advisory_for_CVE_2026_109618_and_CVE_2026_109619"
    }
  ]
}

CVE-2026-109619 (GCVE-0-2026-109619)

Vulnerability from cvelistv5

Published

2026-10-21 13:54

Modified

2026-10-28 03:55

Severity ?

9.2 (Critical) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-416 - Use after free
CWE-755 - Improper Handling of Exceptional Conditions
CWE-824 - Access of uninitialized pointer
CWE-1325 - Improperly controlled sequential memory allocation
CWE-1419 - Incorrect Initialization of Resource

Summary

PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE).

References

URL

Tags

https://github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp

vendor-advisory

Impacted products

	Vendor	Product	Version
	PHP Group	PHP	Version: 8.2.* ≤ Version: 8.3.* ≤ Version: 8.4.* ≤ Version: 8.5.* ≤

Show details on NVD website

JSON

To clipboard

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            "url": "https://php2shell.delftintellab.com/"
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        },
        "references": [
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          }
        ],
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      }
    ],
    "cna": {
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          "type": "remediation developer",
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        },
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        },
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          "type": "remediation developer",
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      ],
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      "impacts": [
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CVE-2026-109618 (GCVE-0-2026-109618)

Vulnerability from cvelistv5

Published

2026-10-21 13:48

Modified

2026-10-28 03:55

Severity ?

9.2 (Critical) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-416 - Use after free
CWE-755 - Improper Handling of Exceptional Conditions
CWE-824 - Access of uninitialized pointer
CWE-1325 - Improperly controlled sequential memory allocation
CWE-1419 - Incorrect Initialization of Resource

Summary

PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).

References

URL

Tags

https://github.com/php/php-src/security/advisories/GHSA-w8hw-w9fx-j79w

vendor-advisory

Impacted products

	Vendor	Product	Version
	PHP Group	PHP	Version: 8.2.* ≤ Version: 8.3.* ≤ Version: 8.4.* ≤ Version: 8.5.* ≤

Show details on NVD website

JSON

To clipboard

{
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                "id": "CVE-2026-109618",
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                "role": "CISA Coordinator",
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        {
          "lang": "en",
          "type": "finder",
          "value": "OpenAI"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Arnaud Le Blanc"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Ilija Tovilo"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Jakub Zelenka"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Nora Dossche"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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            }
          ],
          "value": "PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE)."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-234",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-234 Hijacking a privileged process"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.2,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "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:P/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-416",
              "description": "CWE-416 Use after free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-755",
              "description": "CWE-755 Improper Handling of Exceptional Conditions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-824",
              "description": "CWE-824 Access of uninitialized pointer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1325",
              "description": "CWE-1325 Improperly controlled sequential memory allocation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1419",
              "description": "CWE-1419 Incorrect Initialization of Resource",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T13:48:34.845Z",
        "orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
        "shortName": "php"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/php/php-src/security/advisories/GHSA-w8hw-w9fx-j79w"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "RCE via OOM corruption",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
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              "type": "text/html",
              "value": "Check the GitHub Security Advisory for mitigation strategies."
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        }
      ],
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  "cveMetadata": {
    "assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
    "assignerShortName": "php",
    "cveId": "CVE-2026-109618",
    "datePublished": "2026-10-21T13:48:34.845Z",
    "dateReserved": "2026-10-12T21:03:58.117Z",
    "dateUpdated": "2026-10-28T03:55:46.712Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CERTFR-2026-AVI-1394

Vulnerability from certfr_avis

Solutions

CVE-2026-109619 (GCVE-0-2026-109619)

Vulnerability from cvelistv5

CVE-2026-109618 (GCVE-0-2026-109618)

Vulnerability from cvelistv5

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Nomenclature