CVE-2026-111573

MediumCVSS 6.3/10Last modified Nov 10, 2026

Description

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.

Metrics

CVSS 4.0 6.3/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-277

Affected software

Vendor	Product	Versions
Checkmk GmbH	Checkmk	>= 2.5.0, < 2.5.0p18; >= 2.4.0, < 2.4.0p39; >= 2.3.0, < 2.3.0p52; 2.2.0

References

https://checkmk.com/werk/19231

Timeline

Published: Nov 6, 2026
Last modified: Nov 10, 2026
NVD status: Deferred

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