What’s Vulnerable › Vulnerabilities
CVE-2025-54479: BIG-IP PEM vulnerability
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-10-15 · updated 2026-10-18
- Weakness: CWE-787
Description
When a classification profile is configured on a virtual server without an HTTP or HTTP/2 profile, undisclosed requests 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 BIG-IP Next CNF: from 1.1.0 through 1.4.0; 2.0.0, 2.0.1, 2.0.2, 2.1.0
- F5 BIG-IP Next for Kubernetes: 2.0.0, 2.1.0
- F5 Networks, Inc. BIG-IP (PEM): from 15.1.0 before 15.1.10.8; from 16.1.0 before 16.1.6.1; from 17.1.0 before 17.1.3; 17.5.0 — fixed in 15.1.10.8, 16.1.6.1, 17.1.3
How to fix
Upgrade to a fixed version: F5 Networks, Inc. BIG-IP (PEM) 15.1.10.8, 16.1.6.1, 17.1.3. Check the vendor advisory for mitigations.
References
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