CVE-2025-64997: Checkmk

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to information disclosure.

Affected products

• Checkmk Checkmk: version 2.2.0 only; version 2.3.0 only; version 2.4.0 only

Published 2025-12-18. Last modified 2026-06-17.