CVE-2021-23044: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

On BIG-IP version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x and 11.6.x, when the Intel QuickAssist Technology (QAT) compression driver is used on affected BIG-IP hardware and BIG-IP Virtual Edition (VE) platforms, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 BIG-IP Access Policy Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Advanced Firewall Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, up to and including 13.1.4.1; from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Analytics: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Application Acceleration Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Application Security Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Domain Name System: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Fraud Protection Service: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Global Traffic Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Link Controller: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Local Traffic Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)
F5 BIG-IP Policy Enforcement Manager: from 11.6.0, up to and including 11.6.5; from 12.1.0, up to and including 12.1.6; from 13.1.0, before 13.1.4.1 (fixed in 13.1.4.1); from 14.1.0, before 14.1.4.2 (fixed in 14.1.4.2); from 15.1.0, before 15.1.3.1 (fixed in 15.1.3.1); from 16.0.0, before 16.1.0 (fixed in 16.1.0)

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