What is CVE-2026-25769?

CVE-2026-25769 is a critical-severity vulnerability in Wazuh, classified under Deserialization of Untrusted Data. CVSS score: 9.1/10. Published 2026-03-17.

How severe is CVE-2026-25769?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2026-25769 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Wazuh

CVE-2026-25769

Wazuh is a free and open source platform used for threat prevention, detection, and response. Versions 4.0.0 through 4.14.2 have a Remote Code Execution (RCE) vulnerability due to Deserialization of Untrusted Data). All Wazuh deployments u…

Vulnerability class: Insecure Deserialization

EPSS: 0.005 (64.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Wazuh — versions >= 4.0.0, < 4.14.3

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

https://github.com/wazuh/wazuh/security/advisories/GHSA-3gm7-962f-fxw5 (x_refsource_CONFIRM)
https://drive.google.com/drive/folders/1WlkKNmHexz8212OVED9O6M_3pI8b6qNI?usp=sharing (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25769?: CVE-2026-25769 is a critical-severity vulnerability in Wazuh, classified under Deserialization of Untrusted Data. CVSS score: 9.1/10. Published 2026-03-17.
How severe is CVE-2026-25769?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2026-25769 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.