CVE-2025-64169 MEDIUM

CVE-2025-64169: Wazuh NULL pointer dereference in fim_alert line 666

Vendor Wazuh
Product wazuh
Weakness CWE-252
Published November 21, 2025
Last update November 21, 2025

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 21, 2025 CVE published
November 21, 2025 Record updated