---
id: CVE-2025-61909
title: Icinga 2 is an open source monitoring system
summary: >-
  Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1,
  2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload
  icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the
  mai…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-250
vendor: icinga
product: icinga
affected:
  - 'icinga >= 2.10.0, < 2.13.13'
  - 'icinga >= 2.14.0, < 2.14.7'
  - icinga = 2.15.0
patched:
  - icinga 2.14.7
published: '2025-10-16'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T10:10:00.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-61909'
references:
  - url: >-
      https://github.com/Icinga/icinga2/commit/51ec73cbd922a76fc0f60e1d8d33acd7caa5d587
    label: security-advisories@github.com
  - url: 'https://github.com/Icinga/icinga2/issues/10527'
    label: security-advisories@github.com
  - url: 'https://github.com/Icinga/icinga2/security/advisories/GHSA-pg6g-g99v-mw46'
    label: security-advisories@github.com
  - url: >-
      https://icinga.com/blog/releasing-icinga-2-v2-15-1-2-14-7-and-2-13-13-and-icinga-db-web-v1-2-3-and-1-1-4
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00216
epssPercentile: 0.11049
ingestedAt: '2026-10-09T12:53:29.039Z'
---

## Overview

Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.

## Affected

- `icinga >= 2.10.0, < 2.13.13`
- `icinga >= 2.14.0, < 2.14.7`
- `icinga = 2.15.0`

## Remediation

Upgrade past the affected range:

- `icinga 2.14.7`