CVE-2025-55670

BIG-IP Next (CNF, SPK, and Kubernetes) vulnerability

Published Oct 15, 2025 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
On BIG-IP Next CNF, BIG-IP Next SPK, and BIG-IP Next for Kubernetes systems, repeated undisclosed API calls can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared F5 big-ip Next Cloud-native Network Functions
F5 big-ip Next For Kubernetes
CPEs cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_next_for_kubernetes:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:*:*:*:*:*:*:*:*
Vendors & Products F5 big-ip Next Cloud-native Network Functions
F5 big-ip Next For Kubernetes
Type Values Removed Values Added
First Time appeared F5
F5 big-ip
F5 big-ip Next
F5 big-ip Next Service Proxy For Kubernetes
F5 big Ip
Vendors & Products F5
F5 big-ip
F5 big-ip Next
F5 big-ip Next Service Proxy For Kubernetes
F5 big Ip
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description On BIG-IP Next CNF, BIG-IP Next SPK, and BIG-IP Next for Kubernetes systems, repeated undisclosed API calls can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Title BIG-IP Next (CNF, SPK, and Kubernetes) vulnerability
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
f5
Published
Updated
Feb 26, 2026, 4:57 PM
Reserved
Oct 3, 2025, 11:04 PM
Status
Analyzed
Published
Oct 15, 2025, 2:15 PM
Modified
Oct 18, 2026, 9:10 PM