Out-of-bounds read in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2026-8451

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU135996

Out-of-bounds read in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2026-8451

Published: June 30, 2026


Vulnerability identifier: #VU135996
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-8451
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Citrix
Affected software:
Citrix Netscaler ADC
Citrix NetScaler Gateway

Detailed vulnerability description

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to out-of-bounds read in the SAML IdP functionality when processing SAML IdP input. A remote attacker can send crafted input to disclose sensitive information.

NetScaler ADC or NetScaler Gateway must be configured as a SAML IdP.


How to mitigate CVE-2026-8451

Install security update from vendor's website.

Sources