Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
Published Oct 16, 2025
7.1
HIGHCVSS 4.0
EPSS 0.53%
Description
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 products
-
- Version >=2.10.0, < 2.13.13StatusaffectedConstraints-
- Version >=2.14.0, < 2.14.7StatusaffectedConstraints-
- Version >=2.15.0, < 2.15.1StatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Oct 16, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00534) | 42.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.49% (0.00487) | 37.88th | v5 (v2026.06.15) |
| Oct 17, 2025 | 0.04% (0.00041) | 12.23th | v4 (v2025.03.14) |
References (3)
- https://github.com/Icinga/icinga2/pull/6521 x_refsource_MISCPatch
- https://github.com/Icinga/icinga2/security/advisories/GHSA-v9jg-xqhj-f43g x_refsource_CONFIRMPatchVendor Advisory
- 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 x_refsource_MISCRelease Notes
| Link | Providers | Tags |
|---|---|---|
| https://github.com/Icinga/icinga2/pull/6521 | x_refsource_MISCPatch | |
| https://github.com/Icinga/icinga2/security/advisories/GHSA-v9jg-xqhj-f43g | x_refsource_CONFIRMPatchVendor Advisory | |
| 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 | x_refsource_MISCRelease Notes |
Change history (0)
No recorded changes yet.