F5 · BIG-IP
CVE-2020-5902
F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability
What it is
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.
CISA: F5 BIG-IP Traffic Management User Interface (TMUI) contains a remote code execution vulnerability in undisclosed pages.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: May 3, 2022
- Added to the CISA list
- November 3, 2021
- Published
- July 1, 2020
- Severity
- Critical 9.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- >99.9% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-22
- More details
- NVD · CVE.org · CISA
All references (12)
- https://support.f5.com/csp/article/K52145254
- 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
- https://www.kb.cert.org/vuls/id/290915
- https://www.criticalstart.com/f5-big-ip-remote-code-execution-exploit/
- https://badpackets.net/over-3000-f5-big-ip-endpoints-vulnerable-to-cve-2020-5902/
- http://packetstormsecurity.com/files/158414/Checker-CVE-2020-5902.html
- https://github.com/Critical-Start/Team-Ares/tree/master/CVE-2020-5902
- http://packetstormsecurity.com/files/158581/F5-Big-IP-13.1.3-Build-0.0.6-Local-File-Inclusion.html
- https://swarm.ptsecurity.com/rce-in-f5-big-ip/
- http://packetstormsecurity.com/files/175671/F5-BIG-IP-TMUI-Directory-Traversal-File-Upload-Code-Execution.html
More exploited flaws from F5
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Mar 27, 2026 | Stack-Based Buffer Overflow | BIG-IP | Critical 9.3 | 2.3% |
| May 10, 2022 | Missing Authentication | BIG-IP | Critical 9.8 | >99.9% |
| Sep 22, 2026 | Heap-based Buffer Overflow | BIG-IP APM | Critical 9.3 | 25% |
| Oct 31, 2023 | Authentication Bypass | BIG-IP Configuration Utility | Critical 9.8 | 97% |
| Oct 31, 2023 | SQL Injection | BIG-IP Configuration Utility | High 8.8 | 4.2% |
| Jan 18, 2022 | Buffer Overflow | BIG-IP Traffic Management Microkernel | Critical 9.8 | 62% |
| Nov 3, 2021 | iControl REST Remote Code Execution | BIG-IP and BIG-IQ Centralized Management | Critical 9.8 | 99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.