#VU119441 Reliance on Cookies without Validation and Integrity Checking in FortiWeb - CVE-2025-64447
Published: December 9, 2025 / Updated: December 18, 2025
Vulnerability identifier: #VU119441
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-64447
CWE-ID: CWE-565
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FortiWeb
FortiWeb
Software vendor:
Fortinet, Inc
Fortinet, Inc
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to reliance on cookies without validation and integrity checking. An unauthenticated attacker can execute arbitrary operations on the system via crafted HTTP or HTTPS request via forged cookies requiring knowledge of the FortiWeb serial number.
Remediation
Install updates from vendor's website.