CVE-2018-5530: F5 BIG-IP Access Policy Manager

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

F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, or 11.6.0-11.6.3.1 virtual servers with HTTP/2 profiles enabled are vulnerable to "HPACK Bomb".

Affected products

• F5 BIG-IP Access Policy Manager: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Advanced Firewall Manager: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Analytics: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Application Acceleration Manager: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Application Security Manager: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Edge Gateway: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Local Traffic Manager: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Policy Enforcement Manager: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5
• F5 BIG-IP Websafe: from 11.6.0, up to and including 11.6.3.1; from 12.1.0, up to and including 12.1.3.5; from 13.0.0, up to and including 13.1.0.5

Published 2018-07-25. Last modified 2026-06-17.