CVE-2025-61909
Reported by github_m · Published October 16, 2025
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| icinga | icinga | 2.14.7, 2.13.13 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Icinga | icinga2 | >=2.10.0, < 2.13.13, >=2.14.0, < 2.14.7, >=2.15.0, < 2.15.1 |
| Icinga | icinga2 | 2.10.0, 2.14.0, 2.15.0 |
Timeline
- Oct 16, 2025 Coalition ESS Score (7 in total, the first dated here)
- Oct 16, 2025 CVE Published
- Oct 16, 2025 CVE Updated
- Oct 17, 2025 EPSS Score (30 in total, the first dated here)
- Dec 7, 2025 Security Advisory
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References
- https://github.com/Icinga/icinga2/security/advisories/GHSA-pg6g-g99v-mw46 x_refsource_CONFIRM
- https://github.com/Icinga/icinga2/issues/10527 x_refsource_MISC
- https://github.com/Icinga/icinga2/commit/51ec73cbd922a76fc0f60e1d8d33acd7caa5d587 x_refsource_MISC
- 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_MISC