CVE-2021-23027: F5 BIG-IP Access Policy Manager

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, and 14.1.x before 14.1.4.3, a DOM based cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 BIG-IP Access Policy Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Advanced Firewall Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Advanced Web Application Firewall: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Analytics: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Application Acceleration Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Application Security Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Ddos Hybrid Defender: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Domain Name System: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Fraud Protection Service: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Global Traffic Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Link Controller: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Local Traffic Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP Policy Enforcement Manager: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1
F5 BIG-IP SSL Orchestrator: from 14.1.0, up to and including 14.1.4; from 15.1.0, up to and including 15.1.3; from 16.0.0, up to and including 16.0.1.1

Published 2021-09-14. Last modified 2026-06-17.