CVE-2025-54866: Wazuh installation fails to protected authd.pass on Windows

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-11-21 · updated 2026-10-19
Weakness: CWE-276

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.3.0 to before 4.13.0, a missing ACL on "C:\Program Files (x86)\ossec-agent\authd.pass" exposes the password to all "Authenticated Users" on the local machine. This issue has been patched in version 4.13.0.

Affected products

wazuh: from 4.3.0 before 4.13.0 — fixed in 4.13.0

How to fix

Upgrade to a fixed version: wazuh 4.13.0. Check the vendor advisory for mitigations.

References

https://github.com/wazuh/wazuh/commit/606f19e688944ebe5d28d72eb81ac36f8fffb143
https://github.com/wazuh/wazuh/pull/31187
https://github.com/wazuh/wazuh/releases/tag/v4.13.0
https://github.com/wazuh/wazuh/security/advisories/GHSA-mvfx-ph7m-qm37

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