Buffer overflow in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2025-7775

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Main Vulnerability Database Vulnerabilities #VU114447

Buffer overflow in Citrix Netscaler ADC and Citrix NetScaler Gateway - CVE-2025-7775

Published: August 27, 2025 / Updated: January 9, 2026


Vulnerability identifier: #VU114447
CSH Severity: Critical
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-7775
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being exploited in the wild.

Affected software

Citrix Netscaler ADC
Citrix NetScaler Gateway

How to mitigate CVE-2025-7775

Install updates from vendor's website.

Citrix Netscaler ADC - addressed in versions 12.1-55.330, 13.1-37.241, 13.1-59.22, 14.1-47.48
Citrix NetScaler Gateway - addressed in versions 13.1-59.22, 14.1-47.48

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins