Security readout for executives and security teams
CVE-2020-5902 is a critical unauthenticated remote code execution flaw in F5 BIG-IP’s web management interface, TMUI. If that interface is reachable by attackers, compromise can affect confidentiality, integrity, and availability of the device and the services it supports. Exposure is most likely where BIG-IP TMUI, also called the Configuration utility, is reachable from the internet or other untrusted networks. Organizations using the listed BIG-IP version ranges should treat exposed management interfaces as urgent. Treat as emergency remediation for any exposed BIG-IP management interface. The vulnerability is unauthenticated, critical severity, and listed by CISA as known exploited, so delay materially increases business risk. Mitigation focus: Use F5 K52145254 to identify and apply the appropriate fixed release or workaround.; Remove public or untrusted access to TMUI wherever operationally possible.; Prioritize externally reachable BIG-IP management interfaces first..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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ATT&CK lookup starting points
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CWE-22: File access and web shell behavior lookup
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Open ATT&CK lookupExecution behavior lookup
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Open ATT&CK lookupCVE-2020-5902 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://support.f5.com/csp/article/K52145254CVE reference
- VU#290915CVE reference · third-party-advisory
- https://www.criticalstart.com/f5-big-ip-remote-code-execution-exploit/CVE reference
- https://badpackets.net/over-3000-f5-big-ip-endpoints-vulnerable-to-cve-2020-5902/CVE reference
- https://github.com/Critical-Start/Team-Ares/tree/master/CVE-2020-5902CVE reference
- https://swarm.ptsecurity.com/rce-in-f5-big-ip/CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5902CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.