CVE-2020-6644: Fortinet Fortideceptor

High severity, CVSS 8.1. EPSS: 1% chance of exploitation in the next 30 days.

An insufficient session expiration vulnerability in FortiDeceptor 3.0.0 and below allows an attacker to reuse the unexpired admin user session IDs to gain admin privileges, should the attacker be able to obtain that session ID via other, hypothetical attacks.

Affected products

• Fortinet Fortideceptor: up to and including 3.0.0

Published 2020-06-22. Last modified 2026-06-17.