CVE-2021-22128: Fortinet FortiProxy

Medium severity, CVSS 4.3. EPSS: 1% chance of exploitation in the next 30 days.

An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.

Affected products

• Fortinet FortiProxy: up to and including 1.2.9; version 2.0.0 only

Published 2021-03-04. Last modified 2026-06-17.