Unchecked Return Value in FortiOS - CVE-2025-58903
Published: October 15, 2025
Vulnerability identifier: #VU117209
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-58903
CWE-ID: CWE-252
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote privileged user to perform service disruption.
The vulnerability exists due to unchecked return value. An authenticated user can cause a Null Pointer Dereference, crashing the http daemon via a specialy crafted request.
Affected software
FortiOS
How to mitigate CVE-2025-58903
Install update from vendor's website.
FortiOS - addressed in versions 7.4.9, 7.6.4