NULL pointer dereference in Icinga
CVE-2025-61908
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (44.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Icinga
- Icinga Icinga2 — versions >=2.10.0, < 2.13.13, >=2.14.0, < 2.14.7, >=2.15.0, < 2.15.1
Weakness classification (CWE)
References
- github.com/Icinga/icinga2/security/advisories/GHSA-v9jg-xqhj-f43g (Patch, Vendor Advisory)
- github.com/Icinga/icinga2/pull/6521 (Patch)
- icinga.com/blog/releasing-icinga-2-v2-15-1-2-14-7-and-2-13-13-and-icinga-db-web… (Release Notes)
Frequently asked questions
- What is CVE-2025-61908?
- CVE-2025-61908 is a medium-severity vulnerability in Icinga, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2025-10-16.
- How severe is CVE-2025-61908?
- Medium severity. CVSS v3 base score is 6.5 out of 10.