What is CVE-2025-64330?

CVE-2025-64330 is a high-severity vulnerability in Oisf Suricata, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-26.

How severe is CVE-2025-64330?

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

Buffer overflow in Oisf Suricata

CVE-2025-64330

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a single byte read heap overflow when logging the verdict in eve.ale…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (22.9th 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

Oisf Suricata — versions < 7.0.13, < 8.0.2

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

https://github.com/OISF/suricata/security/advisories/GHSA-83v7-gm34-f437 (x_refsource_CONFIRM)
https://github.com/OISF/suricata/commit/482e5eac9218d007adbe2410d6c00173368ce947 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-64330?: CVE-2025-64330 is a high-severity vulnerability in Oisf Suricata, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-26.
How severe is CVE-2025-64330?: High severity. CVSS v3 base score is 7.5 out of 10.