Vulnerability-Lookup

GHSA-X62M-6223-4VQ2

Vulnerability from github – Published: 2026-10-09 00:31 – Updated: 2026-10-09 15:31

Details

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.

NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:

For the following versions: Applicable only when configured as a SAML IdP:
NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive
NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive
NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive
NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive

For the following versions: Applicable only when configured as a SAML SP or SAML IdP:

NetScaler ADC and NetScaler Gateway before 14.1-73.37
NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS
NetScaler ADC and NetScaler Gateway before 13.1-64.23
NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279

Severity

9.5 (Critical)


                  
                    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-107406"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-08T22:17:26Z",
    "severity": "CRITICAL"
  },
  "details": "Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n\u00a0\n\n  *  For the following versions: Applicable only when configured as a\u00a0SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n\u00a0\n\n\n\nFor the following versions: Applicable only when configured as a\u00a0SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37\u00a0\n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS\u00a0\n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279",
  "id": "GHSA-x62m-6223-4vq2",
  "modified": "2026-10-09T15:31:24Z",
  "published": "2026-10-09T00:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107406"
    },
    {
      "type": "WEB",
      "url": "https://community.citrix.com/techzone-blogs/110_security-updates/protecting-customers-immediate-guidance-for-cve-2026-107406-in-netscaler-adc-and-netscaler-gateway-r1631"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697191"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-107406 (GCVE-0-2026-107406)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:18 – Updated: 2026-10-09 12:54

Title

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service

Summary

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC. NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements: * For the following versions: Applicable only when configured as a SAML IdP: * NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive * NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive * NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive * NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive For the following versions: Applicable only when configured as a SAML SP or SAML IdP: * NetScaler ADC and NetScaler Gateway before 14.1-73.37 * NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS * NetScaler ADC and NetScaler Gateway before 13.1-64.23 * NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279

Severity

9.5 (Critical)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 12:52 UTC

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

NetScaler CNA under the mitre root

CNA scorecard C 63/100 over 18 records in the last 180 days details

References

2 references

URL	Tags
https://support.citrix.com/support-home/kbsearch/…
https://community.citrix.com/techzone-blogs/110_s…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
NetScaler	ADC	Affected: 0 , < 14.1-73.46 (patch) Affected: 0 , < 13.1-64.29 (patch) Affected: 0 , < 14.1-73.46 FIPS (patch) Affected: 0 , < 13.1.37.283 FIPS (patch)
NetScaler	Gateway	Affected: 0 , < 14.1-73.46 (patch) Affected: 0 , < 13.1-64.29 (patch)

Date Public

2026-10-08 21:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107406",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-09T12:52:20.488025Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-119",
                "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-09T12:54:46.070Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory"
            ],
            "url": "https://community.citrix.com/techzone-blogs/110_security-updates/protecting-customers-immediate-guidance-for-cve-2026-107406-in-netscaler-adc-and-netscaler-gateway-r1631/"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ADC",
          "vendor": "NetScaler",
          "versions": [
            {
              "lessThan": "14.1-73.46",
              "status": "affected",
              "version": "0",
              "versionType": "patch"
            },
            {
              "lessThan": "13.1-64.29",
              "status": "affected",
              "version": "0",
              "versionType": "patch"
            },
            {
              "lessThan": "14.1-73.46 FIPS",
              "status": "affected",
              "version": "0",
              "versionType": "patch"
            },
            {
              "lessThan": "13.1.37.283 FIPS",
              "status": "affected",
              "version": "0",
              "versionType": "patch"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Gateway",
          "vendor": "NetScaler",
          "versions": [
            {
              "lessThan": "14.1-73.46",
              "status": "affected",
              "version": "0",
              "versionType": "patch"
            },
            {
              "lessThan": "13.1-64.29",
              "status": "affected",
              "version": "0",
              "versionType": "patch"
            }
          ]
        }
      ],
      "datePublic": "2026-10-08T21:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\u003cdiv\u003e\u003cbr\u003e\u003cp\u003eNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\u003c/p\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e\u003cul\u003e\u003cli\u003eFor the following versions: Applicable only when configured as a\u0026nbsp;SAML IdP:\u003c/li\u003e\u003cli\u003eNetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\u003c/li\u003e\u003cli\u003eNetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\u003c/li\u003e\u003cli\u003eNetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\u003c/li\u003e\u003cli\u003eNetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e\u003cp\u003eFor the following versions: Applicable only when configured as a\u0026nbsp;SAML SP or SAML IdP:\u003c/p\u003e\u003cul\u003e\u003cli\u003eNetScaler ADC and NetScaler Gateway before 14.1-73.37\u0026nbsp;\u003c/li\u003e\u003cli\u003eNetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS\u0026nbsp;\u003c/li\u003e\u003cli\u003eNetScaler ADC and NetScaler Gateway before 13.1-64.23\u003c/li\u003e\u003cli\u003eNetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279\u003c/li\u003e\u003c/ul\u003e\u003c/div\u003e"
            }
          ],
          "value": "Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n\u00a0\n\n  *  For the following versions: Applicable only when configured as a\u00a0SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n\u00a0\n\n\n\nFor the following versions: Applicable only when configured as a\u00a0SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37\u00a0\n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS\u00a0\n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279"
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.5,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "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:H/SI:H/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T21:18:08.336Z",
        "orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
        "shortName": "NetScaler"
      },
      "references": [
        {
          "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697191"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Memory overflow vulnerability leading to Remote Code Execution or Denial of Service",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
    "assignerShortName": "NetScaler",
    "cveId": "CVE-2026-107406",
    "datePublished": "2026-10-08T21:18:08.336Z",
    "dateReserved": "2026-10-08T00:18:26.020Z",
    "dateUpdated": "2026-10-09T12:54:46.070Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

GHSA-X62M-6223-4VQ2

CVE-2026-107406 (GCVE-0-2026-107406)

Tags

Sightings

Nomenclature

Related by attack behaviour