Link following in Fortinet FortiClient for Windows - CVE-2025-62676

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Main Vulnerability Database Vulnerabilities #VU122534

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 v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2025-62676
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Fortinet, Inc
Affected software:
Fortinet FortiClient for Windows

Detailed vulnerability description

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.


How to mitigate CVE-2025-62676

Install update from vendor's website.

Sources