CVE-2026-20732: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 BIG-IP Access Policy Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Advanced Firewall Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Advanced Web Application Firewall: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Analytics: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Application Acceleration Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Application Security Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Application Visibility And Reporting: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Automation Toolchain: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Carrier-Grade Nat: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Container Ingress Services: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Ddos Hybrid Defender: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Domain Name System: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Edge Gateway: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Fraud Protection Service: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Global Traffic Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Link Controller: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0., before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Local Traffic Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Policy Enforcement Manager: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP SSL Orchestrator: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Webaccelerator: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)
F5 BIG-IP Websafe: from 16.1.0, up to and including 16.1.6; from 17.1.0, before 17.1.3.1 (fixed in 17.1.3.1); from 17.5.0, before 17.5.1.4 (fixed in 17.5.1.4)

Published 2026-02-04. Last modified 2026-06-17.