CVE-2019-6666: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

On BIG-IP 15.0.0-15.0.1, 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, and 13.1.0-13.1.1.4, the TMM process may produce a core file when an upstream server or cache sends the BIG-IP an invalid age header value.

Affected products

F5 BIG-IP Access Policy Manager: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Advanced Firewall Manager: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Analytics: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Application Acceleration Manager: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Application Security Manager: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Domain Name System: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Edge Gateway: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Fraud Protection Service: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Global Traffic Manager: from 13.0.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Link Controller: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Local Traffic Manager: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Policy Enforcement Manager: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1
F5 BIG-IP Webaccelerator: from 13.1.0, up to and including 13.1.1.4; from 14.0.0, up to and including 14.0.0.4; from 14.1.0, up to and including 14.1.0.5; from 15.0.0, up to and including 15.0.1

Published 2019-11-27. Last modified 2026-06-17.