CVE-2020-5902: F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 100% chance of exploitation in the next 30 days.

In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.

Affected products

F5 BIG-IP Access Policy Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, up to and including 15.0.1.4; from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Advanced Firewall Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Advanced Web Application Firewall: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Analytics: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Application Acceleration Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Application Security Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Ddos Hybrid Defender: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Domain Name System: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Fraud Protection Service: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Global Traffic Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Link Controller: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Local Traffic Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 BIG-IP Policy Enforcement Manager: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)
F5 SSL Orchestrator: from 11.6.1, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.6 (fixed in 14.1.2.6); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.4 (fixed in 15.1.0.4)

Published 2020-07-01. Last modified 2026-06-17.