CVE-2021-23052: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

On version 14.1.x before 14.1.4.4 and all versions of 13.1.x, an open redirect vulnerability exists on virtual servers enabled with a BIG-IP APM access policy. This vulnerability allows an unauthenticated malicious user to build an open redirect URI. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

• F5 BIG-IP Access Policy Manager: from 13.1.0, up to and including 13.1.4; from 14.1.0, before 14.1.4.4 (fixed in 14.1.4.4)

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