CVE-2025-64157: Fortinet FortiOS

High severity, CVSS 7.2. EPSS: 1.5% chance of exploitation in the next 30 days.

A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0 all versions allows an authenticated admin to execute unauthorized code or commands via specifically crafted configuration.

Affected products

• Fortinet FortiOS: from 7.0.0, before 7.4.10 (fixed in 7.4.10); from 7.6.0, before 7.6.5 (fixed in 7.6.5)

Published 2026-02-10. Last modified 2026-06-17.