What’s Vulnerable › Vulnerabilities

CVE-2025-24016: Wazuh Server Deserialization of Untrusted Data Vulnerability

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-06-10
• EPSS: 93.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-02-10 · updated 2026-06-17
• Weakness: CWE-502

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.9.1, an unsafe deserialization vulnerability allows for remote code execution on Wazuh servers. DistributedAPI parameters are a serialized as JSON and deserialized using `as_wazuh_object` (in `framework/wazuh/core/cluster/common.py`). If an attacker manages to inject an unsanitized dictionary in DAPI request/response, they can forge an unhandled exception (`__unhandled_exc__`) to evaluate arbitrary python code. The vulnerability can be triggered by anybody with API access (compromised dashboard or Wazuh servers in the cluster) or, in certain configurations, even by a compromised agent. Version 4.9.1 contains a fix.

Affected products

• wazuh: from 4.4.0 before 4.9.1 — fixed in 4.9.1

How to fix

Upgrade to a fixed version: wazuh 4.9.1. Check the vendor advisory for mitigations.

References

• https://github.com/wazuh/wazuh/security/advisories/GHSA-hcrc-79hj-m3qh
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24016

Get alerted when CVE-2025-24016 or the next vulnerability affects your stack