OS command injection in FortiWeb - CVE-2025-66178
Published: March 10, 2026
Vulnerability identifier: #VU123720
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-66178
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to improper input validation in the API. A remote privileged user can send a specially crafted HTTP request and execute arbitrary OS commands with elevated privileges.
Affected software
FortiWeb
How to mitigate CVE-2025-66178
Install updates from vendor's website.
FortiWeb - addressed in versions 7.0.13, 7.2.13, 7.4.12, 7.6.7, 8.0.3