CVE-2025-61908
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
CVE-2025-61908 is a high vulnerability (CVSS 7.1) in Icinga, published October 16, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. Fixed in icinga2 2.14.6-1+deb13u1.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
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.
- Record
CVE-2025-61908- CVSS 4.0
- 7.1 High
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 - Weakness
- CWE-476
- Updated
- 2026-11-02
EUVDEUVD-2025-34793
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.
- Record
EUVD-2025-34793- CVSS 4.0
- 7.1 High
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 - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-61908- CVSS 4.0
- 7.1 High
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
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
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.
- Record
CVE-2025-61908- CVSS 4.0
- 7.1 High
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 - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVDEBIAN-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.
- Record
DEBIAN-CVE-2025-61908- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-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.
- Record
UBUNTU-CVE-2025-61908- CVSS 4.0
- 7.1 High
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 - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2025:15644-1 No score
icinga2-2.15.1-1.1 on GA media
These are all security issues fixed in the icinga2-2.15.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:15644-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
icinga2Debian:12 |
All versions, plus listed versions 2.13.6-22.13.6-2+deb12u12.13.6-2+deb12u22.13.7-12.13.7-1~exp1 Show 27 moreShow less2.13.8-12.14.0-1~exp12.14.1-12.14.2-12.14.2-1+loong642.14.3-12.14.4-12.14.5-12.14.6-12.15.0-12.15.0-1~exp12.15.1-12.15.2-12.15.2-22.16.0-12.16.0-22.16.0-3~exp12.16.0-3~exp22.16.0-3~exp32.16.0-3~exp42.16.1-12.16.1-1~exp12.16.2-12.16.2-22.16.3-12.16.4-12.16.5-1 |
None known |
icinga2Debian:13 |
before 2.14.6-1+deb13u1, plus listed versions 2.14.6-1 |
2.14.6-1+deb13u1 |
icinga2Debian:14 |
before 2.15.1-1, plus listed versions 2.14.6-12.15.0-12.15.0-1~exp1 |
2.15.1-1 |
icinga2Ubuntu:16.04:LTS |
All versions, plus listed versions 2.3.8-1build12.3.11-12.4.0-12.4.1-12.4.1-22.4.1-2ubuntu1 |
None known |
icinga2Ubuntu:18.04:LTS |
All versions, plus listed versions 2.7.0-12.8.1-0ubuntu2 |
None known |
icinga2Ubuntu:20.04:LTS |
All versions, plus listed versions 2.10.5-1build12.11.2-12.11.2-1ubuntu12.11.2-1ubuntu22.11.2-1ubuntu3 |
None known |
icinga2Ubuntu:22.04:LTS |
All versions, plus listed versions 2.12.3-12.13.1-12.13.2-12.13.2-1build12.13.2-1build2 |
None known |
icinga2Ubuntu:24.04:LTS |
All versions, plus listed versions 2.13.8-12.14.1-12.14.2-12.14.2-1build12.14.2-1build2 |
None known |
icinga2Ubuntu:25.10 |
All versions, plus listed versions 2.14.5-12.14.6-12.15.0-1 |
None known |
icinga2Ubuntu:26.04:LTS |
All versions, plus listed versions 2.15.0-12.15.1-1 |
None known |
icinga2openSUSE:Tumbleweed |
before 2.15.1-1.1 | 2.15.1-1.1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, NVD, OSV |
References
github.com/Icinga/icinga2/security/advisories/GHSA-v9jg-xqhj-f43g
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
nvd.nist.gov/vuln/detail/CVE-2025-61908
security-tracker.debian.org/tracker/CVE-2025-61908
Show 8 moreShow less
ubuntu.com/security/CVE-2025-61908
cve.org/CVERecord?id=CVE-2025-61908
suse.com/security/cve/CVE-2025-61907