What’s Vulnerable › Vulnerabilities
CVE-2025-55669: BIG-IP HTTP/2 vulnerability
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-10-15 · updated 2026-10-08
- Weakness: CWE-672
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
- BIG-IP ASM: from 16.1.0 before 16.1.6; from 17.1.0 through 17.1.2 — fixed in 16.1.6
How to fix
Upgrade to a fixed version: BIG-IP ASM 16.1.6. Check the vendor advisory for mitigations.
References
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