What is CVE-2025-58120?

CVE-2025-58120 is a high-severity vulnerability in F5 Big-ip Next Cnf, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-10-15.

How severe is CVE-2025-58120?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-58120 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in F5 Big-ip Next Cnf

CVE-2025-58120

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.

EPSS: 0.001 (27.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

F5 Big-ip Next Cnf — versions 2.0.0, 1.1.0
F5 Big-ip Next For Kubernetes — versions 2.0.0
F5 Big-ip Next Spk — versions 2.0.0, 1.9.0, 1.8.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

my.f5.com/manage/s/article/K000156623 (vendor-advisory)

Frequently asked questions

What is CVE-2025-58120?: CVE-2025-58120 is a high-severity vulnerability in F5 Big-ip Next Cnf, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-10-15.
How severe is CVE-2025-58120?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-58120 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.