Wazuh Server 4.0.0 < 4.14.3 RCE

critical Nessus Plugin ID 303595

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Synopsis

The remote host contains a threat prevention, detection, and response platform that is affected by a remote code execution vulnerability.

Description

The version of Wazuh Server on the remote host is at least 4.0.0 and prior to 4.14.3. It is, therefore, affected by a remote code execution vulnerability:

- A deserialization of untrusted data vulnerability exists in Wazuh's cluster mode (master/worker architecture). An attacker who gains access to a worker node can achieve full remote code execution on the master node with root privileges. (CVE-2026-25769)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Wazuh Server version 4.14.3 or later.

Plugin Details

Severity: Critical

ID: 303595

File Name: wazuh_server_4_14_3.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 3/25/2026

Updated: 3/26/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-25769

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:wazuh:wazuh

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2026

Vulnerability Publication Date: 3/17/2026

Reference Information

CVE: CVE-2026-25769

Detections

Analytics