CVE-2026-8451

Published Jun 30, 2026

Last updated 2 months ago

CVSS high 8.8

Overview

Description: Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
Source: 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
NVD status: Analyzed
Products: netscaler_application_delivery_controller, netscaler_gateway

Risk scores

CVSS 4.0

Type: Secondary
Base score: 8.8
Impact score: -
Exploitability score: -
Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/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
Severity: HIGH

CVSS 3.1

Type: Primary
Base score: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: HIGH

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-125

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*",
            "matchCriteriaId": "D8189708-5190-45E3-BF9A-7A429E87DFE7",
            "versionEndExcluding": "13.1-37.272",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*",
            "matchCriteriaId": "D93A5760-5C50-4786-B981-24A7B35C3055",
            "versionEndExcluding": "13.1-37.272",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*",
            "matchCriteriaId": "BC139A27-D7CE-4D92-9A1F-09713C4C9546",
            "versionEndExcluding": "13.1-63.18",
            "versionStartIncluding": "13.1",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*",
            "matchCriteriaId": "0108075C-1047-449C-A707-F2532770C2AD",
            "versionEndExcluding": "14.1-72.61",
            "versionStartIncluding": "14.1",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:14.1-66.68:*:*:*:fips:*:*:*",
            "matchCriteriaId": "A2BC089B-97D0-4FDB-A336-74409DCDC5E3",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "962D2276-7285-41E2-A867-D464AE11677F",
            "versionEndExcluding": "13.1-63.18",
            "versionStartIncluding": "13.1",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "1591FBCE-57DD-416F-A858-E898B0946AB6",
            "versionEndExcluding": "14.1-72.61",
            "versionStartIncluding": "14.1",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 4.0

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References