What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 100.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-07-01 · updated 2026-06-17
• Weakness: CWE-22

Description

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 APM: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 through 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.1.0.4
• BIG-IP: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Big-Ip Advanced Web Application Firewall: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Big-Ip Analytics: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Networks, Inc. BIG-IP (AAM): from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• BIG-IP ASM: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Big-Ip Ddos Hybrid Defender: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 BIG-IP DNS: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Big-Ip Fraud Protection Service: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Big-Ip Global Traffic Manager: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Big-Ip Link Controller: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 BIG-IP (LTM): from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 Networks, Inc. BIG-IP (PEM): from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4
• F5 SSL Orchestrator: from 11.6.1 before 11.6.5.2; from 12.1.0 before 12.1.5.2; from 13.1.0 before 13.1.3.4; from 14.1.0 before 14.1.2.6; from 15.0.0 before 15.0.1.4; from 15.1.0 before 15.1.0.4 — fixed in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.0.1.4, 15.1.0.4

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; BIG-IP 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Big-Ip Advanced Web Application Firewall 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Big-Ip Analytics 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Networks, Inc. BIG-IP (AAM) 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; BIG-IP ASM 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Big-Ip Ddos Hybrid Defender 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 BIG-IP DNS 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Big-Ip Fraud Protection Service 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Big-Ip Global Traffic Manager 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 Big-Ip Link Controller 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6; F5 BIG-IP (LTM) 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/158333/BIG-IP-TMUI-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/158334/BIG-IP-TMUI-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/158366/F5-BIG-IP-TMUI-Directory-Traversal-File-Upload-Code-Execution.html
• http://packetstormsecurity.com/files/158414/Checker-CVE-2020-5902.html
• http://packetstormsecurity.com/files/158581/F5-Big-IP-13.1.3-Build-0.0.6-Local-File-Inclusion.html
• http://packetstormsecurity.com/files/175671/F5-BIG-IP-TMUI-Directory-Traversal-File-Upload-Code-Execution.html
• https://badpackets.net/over-3000-f5-big-ip-endpoints-vulnerable-to-cve-2020-5902/
• https://github.com/Critical-Start/Team-Ares/tree/master/CVE-2020-5902
• https://support.f5.com/csp/article/K52145254
• https://swarm.ptsecurity.com/rce-in-f5-big-ip/
• https://www.criticalstart.com/f5-big-ip-remote-code-execution-exploit/
• https://www.kb.cert.org/vuls/id/290915

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