What is CVE-2026-2507?

CVE-2026-2507 is a high-severity vulnerability in F5 Big-Ip, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-02-18.

How severe is CVE-2026-2507?

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

NULL pointer dereference in F5 Big-Ip

CVE-2026-2507

When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

EPSS: 0.003 (20.8th 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 — versions 21.0.0, 17.5.1.4, 17.1.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

f5sirt@f5.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-2507?: CVE-2026-2507 is a high-severity vulnerability in F5 Big-Ip, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-02-18.
How severe is CVE-2026-2507?: High severity. CVSS v3 base score is 7.5 out of 10.