CVE-2025-65000

MediumCVSS 5.3/10Last modified Oct 13, 2026

Description

SSH private keys of the "Remote alert handlers (Linux)" rule were exposed in the rule page's HTML source in Checkmk <= 2.4.0p18 and all versions of Checkmk 2.3.0. This potentially allowed unauthorized triggering of predefined alert handlers on hosts where the handler was deployed.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-212

Affected software

Vendor	Product	Versions
Checkmk GmbH	Checkmk	>= 2.4.0, < 2.4.0p18; 2.3.0

References

https://checkmk.com/werk/19030Vendor Advisory

Timeline

Published: Dec 18, 2025
Last modified: Oct 13, 2026
NVD status: Analyzed

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