CVE Catalog

CVE-2025-55669

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.38%

30th percentile - higher than 30% of all known CVEs

Summary

When the BIG-IP Advanced WAF and ASM security policy and a server-side HTTP/2 profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Risk Assessment

An attacker can send specially crafted traffic, causing TMM to crash and disrupting services (denial of service). The risk applies to environments with BIG-IP Advanced WAF/ASM and an HTTP/2 profile.

Recommendation

Apply available BIG-IP updates. Consider restricting or disabling the HTTP/2 profile if not essential, and monitor service availability.

Related vulnerabilities

Original NVD description (English source)

When the BIG-IP Advanced WAF and ASM security policy and a server-side HTTP/2 profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS