---
id: CVE-2025-61908
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, when creating an invalid reference, such as a reference
  to null, dereferencing results in a segmentation fault. This can be used by
  any API …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: icinga
product: icinga
affected:
  - 'icinga >= 2.10.0, < 2.13.13'
  - 'icinga >= 2.14.0, < 2.14.7'
  - 'icinga >= 2.15.0, < 2.15.1'
patched:
  - icinga 2.15.1
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-2025-61908'
references:
  - url: 'https://github.com/Icinga/icinga2/pull/6521'
    label: security-advisories@github.com
  - url: 'https://github.com/Icinga/icinga2/security/advisories/GHSA-v9jg-xqhj-f43g'
    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: 0.00538
epssPercentile: 0.4356
ingestedAt: '2026-10-09T12:53:29.038Z'
---

## 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, when creating an invalid reference, such as a reference to null, dereferencing results in a segmentation fault. This can be used by any API user with access to an API endpoint that allows specifying a filter expression to crash the Icinga 2 daemon. 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, < 2.15.1`

## Remediation

Upgrade past the affected range:

- `icinga 2.15.1`