CVE-2025-34284 CRITICAL

CVE-2025-34284: Nagios XI < 2024R2 Authenticated Command Injection via WinRM Plugin

Weakness CWE-78
Published October 30, 2025
Last update November 17, 2025

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

01Description

Nagios XI versions prior to 2024R2 contain a command injection vulnerability in the WinRM plugin. Insufficient validation of user-supplied parameters allows an authenticated administrator to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to modify configuration, exfiltrate data, disrupt monitoring operations, or execute commands on the underlying host operating system.

Key dates

02Disclosure timeline

October 30, 2025 CVE published
November 17, 2025 Record updated