CVE-2024-52965: Fortinet FortiOS

High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days.

A missing critical step in authentication vulnerability [CWE-304] in Fortinet FortiOS version 7.6.0 through 7.6.1, 7.4.0 through 7.4.5, 7.2.0 through 7.2.10, and before 7.0.16 & FortiProxy version 7.6.0 through 7.6.1, 7.4.0 through 7.4.8, 7.2.0 through 7.2.13 and before 7.0.20 allows an API-user using api-key + PKI user certificate authentication to login even if the certificate is invalid.

Affected products

• Fortinet FortiOS: from 7.0.1, before 7.0.17 (fixed in 7.0.17); from 7.2.0, before 7.2.11 (fixed in 7.2.11); from 7.4.0, before 7.4.6 (fixed in 7.4.6); version 7.6.0 only; version 7.6.1 only
• Fortinet FortiProxy: from 7.0.0, before 7.0.21 (fixed in 7.0.21); from 7.2.0, before 7.2.14 (fixed in 7.2.14); from 7.4.0, before 7.4.9 (fixed in 7.4.9); from 7.6.0, before 7.6.2 (fixed in 7.6.2)

Published 2025-07-08. Last modified 2026-06-17.