Vulnerability-Lookup

GHSA-R7WG-R5WJ-C765

Vulnerability from github – Published: 2026-06-30 15:30 – Updated: 2026-06-30 15:30

Details

Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

Severity

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-8452"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T13:19:33Z",
    "severity": "HIGH"
  },
  "details": "Memory overflow vulnerability\u00a0NetScaler ADC and NetScaler Gateway\u00a0leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a\u00a0Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server",
  "id": "GHSA-r7wg-r5wj-c765",
  "modified": "2026-06-30T15:30:46Z",
  "published": "2026-06-30T15:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8452"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/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-2026-8452 (GCVE-0-2026-8452)

Vulnerability from cvelistv5 – Published: 2026-06-30 12:41 – Updated: 2026-06-30 13:37

Title

Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service

Summary

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

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

Assigner

NetScaler

References

1 reference

URL	Tags
https://support.citrix.com/support-home/kbsearch/…

Impacted products

2 products

Vendor	Product	Version
NetScaler	ADC	Affected: 14.1 , < 72.61 (patch) Affected: 13.1 , < 63.18 (patch) Affected: 14.1 FIPS , < 72.61 (patch) Affected: 13.1 FIPS and NDcPP , < 37.272 (patch)
NetScaler	Gateway	Affected: 14.1 , < 72.61 (patch) Affected: 13.1 , < 63.18 (patch)

Date Public

2026-06-30 12:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-8452",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-30T13:36:43.132060Z",
                "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": "2026-06-30T13:37:04.747Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ADC",
          "vendor": "NetScaler",
          "versions": [
            {
              "lessThan": "72.61",
              "status": "affected",
              "version": "14.1",
              "versionType": "patch"
            },
            {
              "lessThan": "63.18",
              "status": "affected",
              "version": "13.1",
              "versionType": "patch"
            },
            {
              "lessThan": "72.61",
              "status": "affected",
              "version": "14.1 FIPS",
              "versionType": "patch"
            },
            {
              "lessThan": "37.272",
              "status": "affected",
              "version": "13.1 FIPS and NDcPP",
              "versionType": "patch"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Gateway",
          "vendor": "NetScaler",
          "versions": [
            {
              "lessThan": "72.61",
              "status": "affected",
              "version": "14.1",
              "versionType": "patch"
            },
            {
              "lessThan": "63.18",
              "status": "affected",
              "version": "13.1",
              "versionType": "patch"
            }
          ]
        }
      ],
      "datePublic": "2026-06-30T12:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan\u003eMemory overflow vulnerability\u0026nbsp;\u003c/span\u003e\u003cspan\u003eNetScaler ADC and NetScaler Gateway\u0026nbsp;\u003c/span\u003e\u003cspan\u003eleading to unpredictable or erroneous behavior and Denial of Service if the a\u003c/span\u003e\u003cspan\u003eppliance is configured as a\u0026nbsp;\u003c/span\u003e\u003cspan\u003eGateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or \u003c/span\u003e\u003cspan\u003eAAA virtual server\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "Memory overflow vulnerability\u00a0NetScaler ADC and NetScaler Gateway\u00a0leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a\u00a0Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server"
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-30T12:57:25.158Z",
        "orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
        "shortName": "NetScaler"
      },
      "references": [
        {
          "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
    "assignerShortName": "NetScaler",
    "cveId": "CVE-2026-8452",
    "datePublished": "2026-06-30T12:41:07.622Z",
    "dateReserved": "2026-05-13T00:35:55.317Z",
    "dateUpdated": "2026-06-30T13:37:04.747Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-R7WG-R5WJ-C765

CVE-2026-8452 (GCVE-0-2026-8452)

Tags

Sightings

Nomenclature