CVE-2018-13384: Fortinet FortiOS

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

A Host Header Redirection vulnerability in Fortinet FortiOS all versions below 6.0.5 under SSL VPN web portal allows a remote attacker to potentially poison HTTP cache and subsequently redirect SSL VPN web portal users to arbitrary web domains.

Affected products

• Fortinet FortiOS: before 6.0.5 (fixed in 6.0.5)

Published 2019-06-04. Last modified 2026-06-17.