CVE-2016-5023: F5 BIG-IP Access Policy Manager

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

Virtual servers in F5 BIG-IP systems 11.2.1 HF11 through HF15, 11.4.1 HF4 through HF10, 11.5.3 through 11.5.4, 11.6.0 HF5 through HF7, and 12.0.0, when configured with a TCP profile, allow remote attackers to cause a denial of service (Traffic Management Microkernel restart) via crafted network traffic.

Affected products

F5 BIG-IP Access Policy Manager: version 11.2.1 only; version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Advanced Firewall Manager: version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Analytics: version 11.2.1 only; version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Application Acceleration Manager: version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Application Security Manager: version 11.2.1 only; version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Domain Name System: version 12.0.0 only
F5 BIG-IP Edge Gateway: version 11.2.1 only
F5 BIG-IP Global Traffic Manager: version 11.2.1 only; version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only
F5 BIG-IP Link Controller: version 11.2.1 only; version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Policy Enforcement Manager: version 11.4.1 only; version 11.5.3 only; version 11.5.4 only; version 11.6.0 only; version 12.0.0 only
F5 BIG-IP Protocol Security Module: version 11.2.1 only; version 11.4.1 only
F5 BIG-IP WAN Optimization Manager: version 11.2.1 only
F5 BIG-IP Webaccelerator: version 11.2.1 only

Published 2016-08-26. Last modified 2026-06-17.