What is CVE-2025-64334?

CVE-2025-64334 is a high-severity vulnerability in Oisf Suricata, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-11-26.

How severe is CVE-2025-64334?

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

Resource exhaustion in Oisf Suricata

CVE-2025-64334

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, compressed HTTP data can lead to unbounded memory growth during…

EPSS: 0.001 (18.1th 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

Oisf Suricata — versions >= 8.0.0, < 8.0.2

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

https://github.com/OISF/suricata/security/advisories/GHSA-r5jf-v2gx-gx8w (x_refsource_CONFIRM)
https://github.com/OISF/suricata/commit/00f04daa3a44928dfdd0003cb9735469272c94a1 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-64334?: CVE-2025-64334 is a high-severity vulnerability in Oisf Suricata, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-11-26.
How severe is CVE-2025-64334?: High severity. CVSS v3 base score is 7.5 out of 10.