---
id: CVE-2025-34134
title: >-
  Nagios XI versions prior to 2024R1.4.2 contain a remote code execution
  vulnerability in the Business Process Intelligence (BPI) component
summary: >-
  Nagios XI versions prior to 2024R1.4.2 contain a remote code execution
  vulnerability in the Business Process Intelligence (BPI) component.
  Insufficient validation and sanitization of administrator-controlled BPI
  configuration parameters …
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/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: '2026-09-30T18:17:57.313'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-34134'
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-rce-via-business-process-intelligence-bpi
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - score-dispute
epss: 0.02405
epssPercentile: 0.8344
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2025-10-31T13:05:42.681464Z'
scores:
  nvd: 7.2
  cna: 9.4
ingestedAt: '2026-09-30T18:17:24.561Z'
---

## Overview

Nagios XI versions prior to 2024R1.4.2 contain a remote code execution vulnerability in the Business Process Intelligence (BPI) component. Insufficient validation and sanitization of administrator-controlled BPI configuration parameters (notably bpi_logfile and bpi_configfile) allow an authenticated administrative user to cause the product to create or overwrite files within the webroot and subsequently edit them via the BPI configuration editor. When such files carry executable extensions and are served by the web application, arbitrary code may be executed in the context of the web application user. Successful exploitation results in arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to gain further control of the underlying host operating system.

## Affected

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

## Remediation

Upgrade past the affected range:

- `nagios_xi 2024`