CVE-2025-62631: Fortinet FortiOS

Medium severity, CVSS 5.6. EPSS: 0.3% chance of exploitation in the next 30 days.

An insufficient session expiration vulnerability [CWE-613] vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to maintain access to network resources via an active SSLVPN session not terminated after a user's password change under particular conditions outside of the attacker's control

Affected products

• Fortinet FortiOS: from 6.4.0, before 7.4.1 (fixed in 7.4.1)

Published 2025-12-09. Last modified 2026-06-17.