Insecure DLL loading in Fortinet FortiClient for Windows - CVE-2025-57716
Published: October 14, 2025
Vulnerability identifier: #VU117138
CSH Severity: Low
CVSS v4: 5.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-57716
CWE-ID: CWE-427
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated user to execute arbitrary code.
The vulnerability exists due to uncontrolled search path element in online installer. A local low privileged user can perform a DLL hijacking attack via placing a malicious DLL to the FortiClient Online Installer installation folder.
Affected software
Fortinet FortiClient for Windows
How to mitigate CVE-2025-57716
Install update from vendor's website.
Fortinet FortiClient for Windows - addressed in versions 7.2.12, 7.4.4