What is CVE-2025-36504?

CVE-2025-36504 is a high-severity vulnerability in F5 Big-ip, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-05-07.

How severe is CVE-2025-36504?

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

Resource exhaustion in F5 Big-ip

CVE-2025-36504

When a BIG-IP HTTP/2 httprouter profile is configured on a virtual server, undisclosed responses can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not eval…

EPSS: 0.006 (68.9th 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 17.5.0, 17.1.0, 16.1.0
F5 Big-ip Next — versions 20.2.0
F5 Big-ip Next Cnf — versions 1.1.0
F5 Big-ip Next Spk — versions 1.8.0, 1.7.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

my.f5.com/manage/s/article/K000140919 (vendor-advisory)

Frequently asked questions

What is CVE-2025-36504?: CVE-2025-36504 is a high-severity vulnerability in F5 Big-ip, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-05-07.
How severe is CVE-2025-36504?: High severity. CVSS v3 base score is 7.5 out of 10.