CVE-2024-33507: Fortinet Fortiisolator

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

An insufficient session expiration vulnerability [CWE-613] and an incorrect authorization vulnerability [CWE-863] in FortiIsolator 2.4.0 through 2.4.4, 2.3 all versions, 2.2.0, 2.1 all versions, 2.0 all versions authentication mechanism may allow remote unauthenticated attacker to deauthenticate logged in admins via crafted cookie and remote authenticated read-only attacker to gain write privilege via crafted cookie.

Affected products

• Fortinet Fortiisolator: from 2.3.0, before 2.4.5 (fixed in 2.4.5)

Published 2025-10-14. Last modified 2026-06-17.