CVE-2025-65000
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductCheckmk
PublishedDec 18, 2025
First seenDec 18, 2025
Weakness typeCWE-212CWE-212
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| checkmk checkmk | 2.2.0, 2.3.0, 2.4.0 | — |
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