What is CVE-2026-59762?

CVE-2026-59762 is a high-severity vulnerability in F5 Big-ip, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-15.

How severe is CVE-2026-59762?

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

Resource exhaustion in F5 Big-ip

CVE-2026-59762

When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization. Impact: System performance can degrade until the TMM process is either forced to restart or is…

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 21.1.0, 21.0.0, 17.5.0
F5 Big-ip Next Cnf — versions 2.3.0, 2.0.0, 1.1.0
F5 Big-ip Next For Kubernetes — versions 2.3.0, 2.0.0
F5 Big-ip Next Spk — versions 1.9.0, 1.7.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

f5sirt@f5.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-59762?: CVE-2026-59762 is a high-severity vulnerability in F5 Big-ip, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-15.
How severe is CVE-2026-59762?: High severity. CVSS v3 base score is 7.5 out of 10.