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 v4.0: 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/E:A/U:Red

CVE-ID: CVE-2025-7775

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: Citrix

Affected software:
Citrix Netscaler ADC
Citrix NetScaler Gateway

Detailed vulnerability description

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.

Install updates from vendor's website.