How severe is CVE-2025-54866?

CVE-2025-54866 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-54866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54866?

CVE-2025-54866 affects Wazuh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54866?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-54866 have an EU (EUVD) identifier?

Yes. CVE-2025-54866 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198508.

When was CVE-2025-54866 published?

CVE-2025-54866 was published on 2025-11-21 and last updated on 2026-06-17.

CVE-2025-54866

CVE-2025-54866 is a medium-severity vulnerability in Wazuh with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 1.8
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198508
Weakness: CWE-276
Affected product: Wazuh
Published: 2025-11-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-54866?: 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.
How severe is CVE-2025-54866?: CVE-2025-54866 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-54866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54866?: CVE-2025-54866 affects Wazuh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-54866 have an EU (EUVD) identifier?: Yes. CVE-2025-54866 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198508.
When was CVE-2025-54866 published?: CVE-2025-54866 was published on 2025-11-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*

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