CVE-2025-61908 HIGH

CVE-2025-61908: Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference

Vendor Icinga
Product icinga2
Weakness CWE-476
Published October 16, 2025
Last update October 16, 2025
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 16, 2025 CVE published
October 16, 2025 Record updated