CVE-2008-0779: Fortinet FortiClient Host Security

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

The fortimon.sys device driver in Fortinet FortiClient Host Security 3.0 MR5 Patch 3 and earlier does not properly initialize its DeviceExtension, which allows local users to access kernel memory and execute arbitrary code via a crafted request.

Affected products

• Fortinet FortiClient Host Security: up to and including 3.0

Published 2008-02-14. Last modified 2026-06-16.