CVE-2026-111573
Privilege escalation via unprotected Windows agent data folder
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-277 |
| Vendor | checkmk gmbh |
| Product | checkmk |
| Published | Nov 6, 2026 |
| Last Updated | Nov 6, 2026 |
Stay Ahead of the Next One
Get instant alerts for checkmk gmbh checkmk
Be the first to know when new unknown vulnerabilities affecting checkmk gmbh checkmk are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected 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
Credits
🔍 Anonymous researcher 🔍 Michal 'mdronski.pl' Dronski