CVE-2018-5522: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 5.9. EPSS: 1.4% chance of exploitation in the next 30 days.

On F5 BIG-IP 13.0.0, 12.0.0-12.1.2, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1, when processing DIAMETER transactions with carefully crafted attribute-value pairs, TMM may crash.

Affected products

  • F5 BIG-IP Access Policy Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Advanced Firewall Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Analytics: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Application Acceleration Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Application Security Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Domain Name System: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Edge Gateway: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Global Traffic Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Link Controller: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Local Traffic Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Policy Enforcement Manager: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Webaccelerator: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only
  • F5 BIG-IP Websafe: from 11.5.0, up to and including 11.5.5; from 11.6.0, up to and including 11.6.3; from 12.0.0, up to and including 12.1.2; version 11.2.1 only; version 13.0.0 only

Published 2018-06-01. Last modified 2026-06-17.