CVE-2022-38381: Fortinet FortiADC

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An improper handling of malformed request vulnerability [CWE-228] exists in FortiADC 5.0 all versions, 6.0.0 all versions, 6.1.0 all versions, 6.2.0 through 6.2.3, and 7.0.0 through 7.0.2. This may allow a remote attacker without privileges to bypass some Web Application Firewall (WAF) protection such as the SQL Injection and XSS filters via a malformed HTTP request.

Affected products

• Fortinet FortiADC: from 5.0.0, up to and including 5.0.4; from 5.1.0, up to and including 5.1.7; from 5.2.0, up to and including 5.2.8; from 5.3.0, up to and including 5.3.7; from 5.4.0, up to and including 5.4.5; from 6.0.0, up to and including 6.0.4; …

Published 2022-11-02. Last modified 2026-06-17.