CVE-2025-64169

Wazuh NULL pointer dereference in fim_alert line 666

State: Published
Severity: 5.1 Medium
Published: Nov 21, 2025
Updated: Nov 21, 2025
Reserved: Oct 28, 2025

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 3.7.0 to before 4.12.0, fim_alert() implementation does not check whether oldsum->md5 is NULL or not before dereferencing it. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. This issue has been patched in version 4.12.0.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-252 Unchecked Return Value
CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
wazuhwazuh	>= 3.7.0, < 4.12.0Affected

References

https://github.com/wazuh/wazuh/security/advisories/GHSA-hc35-h924-8596

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