CVE-2025-64344

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductOisf Suricata
PublishedNov 26, 2025
First seenNov 26, 2025
Weakness typeCWE-121CWE-121

How to fix

Update
  • oisf suricata7.0.13, 8.0.2 or later

Affected products

ProductAffected versionsFixed in
oisf suricatav < 7.0.13, 8.0.0 ≤ v < 8.0.27.0.13, 8.0.2

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.