High severity7.5NVD Advisory· Published Oct 15, 2025· Updated Jun 17, 2026

CVE-2025-55669

Description

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.

Affected products

F5, Inc./BIG-IP Advanced WAFllm-fuzzy
F5, Inc./Big IPcpe-rescue
Range: 17.1.0

Patches

Vulnerability mechanics

References

my.f5.com/manage/s/article/K000150752nvdVendor Advisory

News mentions

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