VULNERABILITY INTELLIGENCE

CVE-2025-65000

CVSS score5.3 MEDIUM

EPSS probability0.22%

CISA KEVNot currently listed

Published2025-12-18

Last modified2026-10-13

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.