CVE DATABASE / CVE-2020-5902
CVE-2020-5902
F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability
CVSS 9.8 · CRITICAL
⚠ CISA KEV — ACTIVELY EXPLOITED
RANSOMWARE
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2021-11-03.
Federal remediation due 2022-05-03.
Required action: Apply updates per vendor instructions.
Summary
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.
CVSS 3.1 breakdown
| Base score | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
F5 big-ip access policy managerF5 big-ip advanced firewall managerF5 big-ip advanced web application firewallF5 big-ip analyticsF5 big-ip application acceleration managerF5 big-ip application security managerF5 big-ip ddos hybrid defenderF5 big-ip domain name systemF5 big-ip fraud protection serviceF5 big-ip global traffic managerF5 big-ip link controllerF5 big-ip local traffic managerF5 big-ip policy enforcement managerF5 ssl orchestrator
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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
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5902
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-27. Always verify against the vendor advisory before acting.