Link following in Fortinet FortiClient for Windows - CVE-2025-62676
Published: February 10, 2026 / Updated: February 19, 2026
Vulnerability identifier: #VU122534
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-62676
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated user to damange or delete data.
The vulnerability exists due to improper link resolution before file access ('link following') in FCConfig. A local low-privilege attacker can perform an arbitrary file write with elevated permissions via crafted named pipe messages.
Affected software
Fortinet FortiClient for Windows
How to mitigate CVE-2025-62676
Install update from vendor's website.
Fortinet FortiClient for Windows - addressed in versions 7.2.13, 7.4.5