CVE-2025-54820: Fortinet FortiManager

High severity, CVSS 8.1. EPSS: 0.9% chance of exploitation in the next 30 days.

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.4.2, FortiManager 7.2.0 through 7.2.10, FortiManager 6.4 all versions may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.

Affected products

• Fortinet FortiManager: from 6.4.0, before 7.2.11 (fixed in 7.2.11); from 7.4.0, before 7.4.3 (fixed in 7.4.3)

Published 2026-03-10. Last modified 2026-06-17.