Checkmk GmbH
CVE-2026-111573: Incorrect permissions on the Checkmk Windows agent's data directory, caused by a race condition that discards the permission changes during service start, in Ch
CVE-2026-111573 Nov 6, 2026 Source: Vendor
Incorrect permissions on the Checkmk Windows agent's data directory, caused by a race condition that discards the permission changes during service start, in Checkmk <2.5.0p18, <2.4.0p39, <2.3.0p52 and 2.2.0 (EOL) allow a local user to execute arbitrary code as SYSTEM by placing scripts in the agent's plugins or local folders, and to read the agent controller's private key.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-111573
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CVE-2026-111573
BR2026-0000-042998
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Credited as Anonymous researcher
CVE-2026-111573
BR2026-0000-042999
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Credited as Michal Dronski