CVE-2024-40591: Fortinet FortiOS

High severity, CVSS 7.2. EPSS: 0.6% chance of exploitation in the next 30 days.

An incorrect privilege assignment vulnerability [CWE-266] in Fortinet FortiOS version 7.6.0, 7.4.0 through 7.4.4, 7.2.0 through 7.2.9 and before 7.0.15 allows an authenticated admin whose access profile has the Security Fabric permission to escalate their privileges to super-admin by connecting the targetted FortiGate to a malicious upstream FortiGate they control.

Affected products

• Fortinet FortiOS: from 6.4.0, before 6.4.16 (fixed in 6.4.16); from 7.0.0, before 7.0.16 (fixed in 7.0.16); from 7.2.0, before 7.2.10 (fixed in 7.2.10); from 7.4.0, before 7.4.5 (fixed in 7.4.5); version 7.6.0 only

Published 2025-02-11. Last modified 2026-06-17.