CVE-2025-53856: high-severity vulnerability in F5 BIG-IP
TMM vulnerability
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
When a virtual server, network address translation (NAT) object, or secure network address translation (SNAT) object uses the embedded Packet Velocity Acceleration (ePVA) feature, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. To determine which BIG-IP platforms have an ePVA chip refer to K12837: Overview of the ePVA feature https://my.f5.com/manage/s/article/K12837 . Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
F5 · BIG-IPRelated CVEs — F5 BIG-IP
In the same product, most dangerous first.
CVE-2022-1388CRITICALCVE-2022-1388EPSS 100.0%KEVCVE-2023-46747CRITICALBIG-IP Configuration utility unauthenticated remote code execution vulnerabilityEPSS 96.7%KEVCVE-2026-94127CRITICALBIG-IP APM OAuth vulnerabilityEPSS 26.6%KEVCVE-2023-46748HIGHBIG-IP Configuration utility authenticated SQL injection vulnerabilityEPSS 4.3%KEVCVE-2025-53521CRITICALBigIP APM VulnerabilityEPSS 2.3%KEVCVE-2022-41622HIGHiControl SOAP vulnerabilityEPSS 92.4%