CVE-2020-5872: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

On BIG-IP 14.1.0-14.1.2.3, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.4.1, when processing TLS traffic with hardware cryptographic acceleration enabled on platforms with Intel QAT hardware, the Traffic Management Microkernel (TMM) may stop responding and cause a failover event.

Affected products

F5 BIG-IP Access Policy Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Advanced Firewall Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Analytics: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Application Acceleration Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Application Security Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Domain Name System: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Fraud Protection Service: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Global Traffic Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Link Controller: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Local Traffic Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3
F5 BIG-IP Policy Enforcement Manager: from 12.1.0, up to and including 12.1.4.1; from 13.1.0, up to and including 13.1.3.1; from 14.0.0, up to and including 14.0.1; from 14.1.0, up to and including 14.1.2.3

Published 2020-04-30. Last modified 2026-06-17.