CVE-2022-23031: F5 BIG-IP Advanced Web Application Firewall

Medium severity, CVSS 4.9. EPSS: 0.8% chance of exploitation in the next 30 days.

On BIG-IP FPS, ASM, and Advanced WAF versions 16.1.x before 16.1.1, 15.1.x before 15.1.4, and 14.1.x before 14.1.4.4, an XML External Entity (XXE) vulnerability exists in an undisclosed page of the F5 Advanced Web Application Firewall (Advanced WAF) and BIG-IP ASM Traffic Management User Interface (TMUI), also referred to as the Configuration utility, that allows an authenticated high-privileged attacker to read local files and force BIG-IP to send HTTP requests. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

• F5 BIG-IP Advanced Web Application Firewall: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.1.0
• F5 BIG-IP Application Security Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.1.0
• F5 BIG-IP Fraud Protection Service: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.1.0

Published 2022-01-25. Last modified 2026-06-17.