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CVE-2026-8451: netscaler application delivery controller vulnerability
CVE-2026-8451: high vulnerability affecting netscaler application delivery controller. Check CVSS, KEV status, business impact and recommended.
- CVSS
- 8.8 HIGH
- EPSS
- 96.51%
- Known exploited
- not in KEV
- Product
- netscaler application delivery controller
What is known
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
Business impact
Successful exploitation of CVE-2026-8451, a high vulnerability (CVSS 8.8) affecting netscaler application delivery controller, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether netscaler application delivery controller is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.