CVE-2018-5533: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

Under certain conditions on F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.0-11.6.3.1, or 11.5.0-11.5.6, TMM may core while processing SSL forward proxy traffic.

Affected products

F5 BIG-IP Access Policy Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Advanced Firewall Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Analytics: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Application Acceleration Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Application Security Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Domain Name System: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Edge Gateway: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Fraud Protection Service: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Global Traffic Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Link Controller: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Local Traffic Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Policy Enforcement Manager: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only
F5 BIG-IP Webaccelerator: from 11.5.0, up to and including 11.5.6; from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.2; version 13.0.0 only

Published 2018-07-19. Last modified 2026-06-17.