CVE-2025-58120: F5 BIG-IP Next Cloud-Native Network Functions

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

When HTTP/2 Ingress is configured, 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 BIG-IP Next Cloud-Native Network Functions: from 1.1.0, up to and including 1.4.1; version 2.0.0 only
• F5 BIG-IP Next For Kubernetes: version 2.0.0 only
• F5 BIG-IP Next Service Proxy For Kubernetes: from 1.7.0, before 1.7.14 (fixed in 1.7.14); version 1.7.14 only; version 2.0.0 only

Published 2025-10-15. Last modified 2026-06-17.