CVE-2024-23664: Fortinet Fortiauthenticator

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A URL redirection to untrusted site ('open redirect') in Fortinet FortiAuthenticator version 6.6.0, version 6.5.3 and below, version 6.4.9 and below may allow an attacker to to redirect users to an arbitrary website via a crafted URL.

Affected products

• Fortinet Fortiauthenticator: from 6.4.0, before 6.5.4 (fixed in 6.5.4); version 6.6.0 only

Published 2024-06-03. Last modified 2026-06-17.