CVE-2021-23029: F5 BIG-IP Advanced Web Application Firewall

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

On version 16.0.x before 16.0.1.2, insufficient permission checks may allow authenticated users with guest privileges to perform Server-Side Request Forgery (SSRF) attacks through F5 Advanced Web Application Firewall (WAF) and the BIG-IP ASM Configuration utility. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

• F5 BIG-IP Advanced Web Application Firewall: from 16.0.0, before 16.0.1.2 (fixed in 16.0.1.2)
• F5 BIG-IP Application Security Manager: from 16.0.0, before 16.0.1.2 (fixed in 16.0.1.2)

Published 2021-09-14. Last modified 2026-06-17.