CVE-2025-64344

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, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size.

Affected products

Alt Linux, Debian, Suricata

Oisf Suricata

< 7.0.13, 8.0.2

Fix

Available

CVSS 3.1

7.5 HIGH

EPSS

0.3% (27th percentile)

Weakness

CWE-787, CWE-121

NVD status

Analyzed

Published

2025-11-26

No exploit for CVE-2025-64344 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.