{"id":"CVE-2020-5902","published":"2020-07-01T15:15:15Z","modified":"2026-06-17T03:22:25Z","title":"F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability","vendor":"F5","product":"BIG-IP","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"The Traffic Management User Interface (TMUI), also called the Configuration utility, in F5 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 contains a remote code execution flaw in undisclosed pages. An attacker with network access can exploit it without authentication or user interaction to execute code on the affected device.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:53:08Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.99999,"percentile":1.0,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","ransomware":true,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-5902","provenance":"source"},"vulncheckKev":{"dateAdded":"2020-07-22","exploitedFirstSeen":"2020-07-22","ransomware":true,"evidence":[{"url":"https://redcanary.com/blog/kinsing-malware-citrix-saltstack/","date":"2020-07-22"},{"url":"https://cisa.gov/news-events/cybersecurity-advisories/aa20-206a","date":"2020-07-24"},{"url":"https://www.crowdstrike.com/blog/who-is-pioneer-kitten/","date":"2020-08-31"},{"url":"https://www.zdnet.com/article/iranian-hackers-are-selling-access-to-compromised-companies-on-an-underground-forum/","date":"2020-09-01"},{"url":"https://cisa.gov/news-events/cybersecurity-advisories/aa20-259a","date":"2020-09-15"},{"url":"https://us-cert.cisa.gov/ncas/analysis-reports/ar20-259a","date":"2020-09-15"},{"url":"https://www.esentire.com/security-advisories/ransomware-groups-exploit-remote-access-services","date":"2020-09-17"},{"url":"https://cisa.gov/news-events/cybersecurity-advisories/aa20-275a","date":"2020-10-20"},{"url":"https://media.defense.gov/2020/Oct/20/2002519884/-1/-1/0/CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDF","date":"2020-10-20"},{"url":"https://us-cert.cisa.gov/ncas/alerts/aa20-275a","date":"2020-10-20"}],"evidenceTotal":939,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev 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client-execution technique does not fit"}],"reports":[{"id":"SRC-9411ade85d96fe0246ff","title":"Prioritizing “critical” vulnerabilities: A threat intelligence perspective","publisher":"Intel 471","url":"https://github.com/boschresearch/anno-ctr-lrec-coling-2024/blob/d510b6949e1938d47c93a43eedd562dc538439dc/AnnoCTR/text/train/intel471_2020-08-12_prioritizing-critical-vulnerabilities-a-threat.txt","date":"2020-08-12","mentions":[{"quote":"### CVE-2020-5902","start":10063,"end":10080},{"quote":"The F5 Traffic Management User Interface (TMUI), also referred to as the Configuration utility, reportedly had an RCE vulnerability in multiple versions of BIG-IP that was disclosed publicly as CVE-2020-5902 June 30, 2020.","start":10082,"end":10304},{"quote":"Following common trends, several actors shared information from multiple open source reports that discussed the vulnerability, an actor shared an alleged nmap exploit for CVE-2020-5902.","start":10996,"end":11181},{"quote":"* Several actors posted information from open source reporting about the disclosure of CVE-2020-5902.","start":11515,"end":11616},{"quote":"* A notable Turkish-speaking actor shared an exploit and Metasploit module for CVE-2020-5902.","start":11778,"end":11871}]},{"id":"SRC-cc205ca91d4f5c5b85cc","title":"Iran-Based Threat Actor Exploits VPN Vulnerabilities","publisher":"cisa.gov","url":"https://www.cisa.gov/news-events/cybersecurity-advisories/aa20-259a","date":null,"mentions":[{"quote":"CISA and the FBI have observed the threat actor exploiting multiple CVEs, including CVE-2019-11510, CVE-2019-11539, CVE-2019-19781, and CVE-2020-5902.","start":1953,"end":2103},{"quote":"CISA Alert AA20-031A: Detecting Citrix CVE-2019-19781CISA Alert AA20-073A: Enterprise VPN SecurityCISA Alert AA20-107A: Continued Threat Actor Exploitation Post Pulse Secure VPN PatchingCISA Alert AA20-206A: Threat Actor Exploitation of F5 BIG-IP CVE-2020-5902CISA Security Tip: Securing Network Infrastructure Devices","start":8312,"end":8630}]},{"id":"SRC-a69a17064744ac89d968","title":"AA20-258A: Chinese Ministry of State Security-Affiliated Cyber Threat Actor Activity","publisher":"us-cert.cisa.gov","url":"https://us-cert.cisa.gov/ncas/alerts/aa20-258a","date":null,"mentions":[{"quote":"CVE-2020-5902: F5 Big-IP Vulnerability","start":8504,"end":8542},{"quote":"CISA has conducted incident response engagements at Federal Government and commercial entities where the threat actors exploited CVE-2020-5902.","start":8545,"end":8688},{"quote":"CVE-2020-5902","start":21158,"end":21171},{"quote":"F5 Security Advisory: K52145254: TMUI RCE vulnerability CVE-2020-5902","start":21304,"end":21373},{"quote":"Database [6] CISA Alert AA20-133A: Top 10 Routinely Exploited Vulnerabilities [7] CISA Alert AA20-206A: Threat Actor Exploitation of F5 BIG-IP CVE-2020-5902 [8] CISA Alert AA20-031A: Detecting Citrix CVE-2019-19781 [9] CISA Alert AA20-107A: Continued Threat Actor Exploitation Post Pulse Secure VPN Patching","start":23667,"end":23974}]},{"id":"SRC-8b6e5f3c2592261e3f88","title":"Advisory further TTPs associated with SVR cyber actors","publisher":"ncsc.gov.uk","url":"https://www.ncsc.gov.uk/files/Advisory-further-TTPs-associated-with-SVR-cyber-actors.pdf","date":null,"mentions":[{"quote":"• CVE-2020-5902 F5 Big-IP","start":2819,"end":2844}]},{"id":"SRC-32e6cf5c407f3cfe12fc","title":"AA21-200B: Chinese State-Sponsored Cyber Operations: Observed TTPs","publisher":"us-cert.cisa.gov","url":"https://us-cert.cisa.gov/ncas/alerts/aa21-200b","date":null,"mentions":[{"quote":"Many exploits can be mitigated by applying available patches for vulnerabilities (such as CVE-2019-11510, CVE-2019-19781, and CVE-2020-5902) affecting external remote services.","start":20743,"end":20919}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-27056","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-27056","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[{"id":48642,"url":"https://www.exploit-db.com/exploits/48642","title":"BIG-IP 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 / 11.6.1 < 11.6.5.1 - Traffic Management User Interface 'TMUI'  Remote Code Execution","type":"webapps","platform":"linux","date":"2020-07-06","verified":false,"provenance":"source"},{"id":48643,"url":"https://www.exploit-db.com/exploits/48643","title":"BIG-IP 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 / 11.6.1 < 11.6.5.1 - Traffic Management User Interface 'TMUI'  Remote Code Execution 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