CVE-2020-27716
highpriority · track · 30EPSS 0.013 · 70 %ileEUUSEPSS · scored 2026-10-27
On versions 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when a BIG-IP APM virtual server processes traffic of an undisclosed nature, the Traffic Management Microkernel (TMM) stops responding and restarts.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
- n/a BIG-IP APM≤ 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, 11.6.1-11.6.5.2enisa_euvdEU
- f5 big-ip access policy manager11.6.1 → 11.6.5nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager12.1.0 → 12.1.5nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager13.1.0 → 13.1.3nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager14.1.0 → 14.1.3.1nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager15.0.0 → 15.1.1nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2020-27716cnnvd
- https://support.f5.com/csp/article/K51574311cnnvd
- https://vigilance.fr/vulnerability/F5-BIG-IP-APM-denial-of-service-via-Virtual-Server-34154cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.4487/cnnvd
- https://support.f5.com/csp/article/K51574311enisa_euvd
- https://support.f5.com/csp/article/K51574311Vendor Advisorynvd
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