CVE-2025-64169
Medium
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.
SeverityMedium
CVSS4.9
Exploit probability—
ProductWazuh
PublishedNov 21, 2025
First seenNov 21, 2025
Weakness typeCWE-252CWE-252CWE-476NULL pointer dereference
How to fix
Update
- wazuh wazuh4.12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wazuh wazuh | 3.7.0 ≤ v < 4.12.0 | 4.12.0 |
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