---
id: CVE-2025-34284
title: "Nagios XI versions prior to\_2024R2\_contain a command injection vulnerability in the WinRM plugin"
summary: "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 incorpora…"
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: nagios
product: nagios_xi
affected:
  - nagios_xi < 2024
  - nagios_xi = 2024
patched:
  - nagios_xi 2024
published: '2025-10-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T18:17:57.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-34284'
references:
  - url: 'https://www.nagios.com/changelog/nagios-xi/'
    label: disclosure@vulncheck.com
  - url: 'https://www.nagios.com/products/security/#nagios-xi'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/nagios-xi-authenticated-command-injection-via-winrm-plugin
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.04028
epssPercentile: 0.90261
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2025-10-31T15:05:38.671942Z'
scores:
  nvd: 8.8
  cna: 9.4
ingestedAt: '2026-09-30T18:17:24.561Z'
---

## Overview

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.

## Affected

- `nagios_xi < 2024`
- `nagios_xi = 2024`

## Remediation

Upgrade past the affected range:

- `nagios_xi 2024`