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Vulnerabilities

Security fix · CVE-2025-59938

Wazuh is a free and open source platform used for threat prevention, detection, and response.

Published Sep 27, 2025 · catalog updated Sep 29, 2025 · Wazuh is a free

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-59938. EPSS is 0.38%. Act only if a listed version of Wazuh is a free is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Wazuh is a free).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.38%
Remediation
Version ranges on file
Affected products
vendor wazuh wazuh 3.8.0, < 4.11.0

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions starting from 3.8.0 to before 4.11.0, wazuh-analysisd is vulnerable to a heap buffer overflow when parsing XML elements from Windows EventChannel messages. This issue has been patched in version 4.11.0.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor wazuh wazuh 3.8.0, < 4.11.03.8.0, < 4.11.0

How to fix CVE-2025-59938

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-59938. EPSS is 0.38%. Act only if a listed version of Wazuh is a free is installed.

Which versions are affected?

Compare what you have installed with wazuh wazuh 3.8.0, < 4.11.0 3.8.0, < 4.11.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 27, 2025 · EUVD

    Detected

    Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions starting from 3.8.0 to before 4.11.0, wazuh-analysisd is vulnerable to a heap buffer overflow when parsing XML elements from Windows EventChannel messages. This issue has been patched in version 4.11.0.

  2. Sep 29, 2025 · EUVD

    Updated

    Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions starting from 3.8.0 to before 4.11.0, wazuh-analysisd is vulnerable to a heap buffer overflow when parsing XML elements from Windows EventChannel messages. This issue has been patched in version 4.11.0.

Sources

  • CVE.orgVulnerability recordCVE-2025-59938

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-59938

    30-day exploitation probability 0.38%

    first.org
  • EUVDVulnerability recordEUVD-2025-31396

    Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions starting from 3.8.0 to before 4.11.0, wazuh-analysisd is vulnerable to a heap buffer overflow when parsing XML elements from Windows EventChannel messages. This issue has bee

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 29, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026