BIG-IP Next (CNF, SPK, and Kubernetes) vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| F5 | BIG-IP Next SPK | 2.0.0 to before 2.0.1; 1.9.0 and later; 1.8.0 and later; 1.7.0 and later | 2.0.1 | Patch available | CNA |
| F5 | BIG-IP Next CNF | 2.0.0 to before 2.0.1; 1.1.0 and later | 2.0.1 | Patch available | CNA |
| F5 | BIG-IP Next for Kubernetes | 2.0.0 to before 2.1.0 | 2.1.0 | Patch available | CNA |
- BIG-IP Next SPK VendorF5 Affected 2.0.0 to before 2.0.1; 1.9.0 and later; 1.8.0 and later; 1.7.0 and later Fixed in 2.0.1 Patch available CNA
- BIG-IP Next CNF VendorF5 Affected 2.0.0 to before 2.0.1; 1.1.0 and later Fixed in 2.0.1 Patch available CNA
- BIG-IP Next for Kubernetes VendorF5 Affected 2.0.0 to before 2.1.0 Fixed in 2.1.0 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:*:*:*:*:*:*:*:* | 1.1.0 – 1.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_next_for_kubernetes:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:*:*:*:*:*:*:*:* | 1.7.0 to before 1.7.14 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:1.7.14:-:*:*:*:*:*:* | 1.7.14 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:*:*:*:*:*:*:*:* Versions 1.1.0 – 1.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_next_for_kubernetes:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:*:*:*:*:*:*:*:* Versions 1.7.0 to before 1.7.14 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:1.7.14:-:*:*:*:*:*:* Versions 1.7.14 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_next_service_proxy_for_kubernetes:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·F5
Remediation
- Fix · CNA BIG-IP Next SPK (F5) Fixed in 2.0.1
- Fix · CNA BIG-IP Next CNF (F5) Fixed in 2.0.1
- Fix · CNA BIG-IP Next for Kubernetes (F5) Fixed in 2.1.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
F5 BIG-IP Next for Kubernetes 2.1.0
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-35101 BIG-IP Next (CNF, SPK, and Kubernetes) vulnerabilityPriority LOW 31
- TI-2025-34559 TMM VulnerabilityPriority LOW 27
Timeline
- 2026-10-02 Threatist record created from CVE-2025-58120
- 2026-10-03 Alias added: GHSA-jg4r-5fpx-73gm
References
More F5 Big-ip Next Cloud-native Network Functions vulnerabilities
- TI-2026-42605 BIG-IP HTTP/2 vulnerability CVSS 4.0HIGH 8.7
- TI-2026-29357 BIG-IP SSL/TLS vulnerability CVSS 4.0HIGH 8.7
- TI-2026-29350 BIG-IP SSL/TLS vulnerability CVSS 4.0HIGH 8.7
- TI-2025-38317 TMM vulnerability CVSS 4.0HIGH 8.7
- TI-2025-38308 BIG-IP SSL/TLS vulnerability CVSS 4.0HIGH 8.7
- TI-2025-37392 BIG-IP SSL/TLS vulnerability CVSS 4.0HIGH 8.7
Sources
- CVE-2025-58120 · CVE Program
- CVE-2025-58120 · NVD
- FIRST EPSS
- GHSA-jg4r-5fpx-73gm · GitHub Advisory Database · CC BY 4.0
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