{"affected":[{"defaultStatus":"unaffected","product":"Checkmk","source":"CNA: Checkmk","vendor":"Checkmk GmbH","versions":[{"lessThan":"2.5.0p18","status":"affected","version":"2.5.0","versionType":"semver"},{"lessThan":"2.4.0p39","status":"affected","version":"2.4.0","versionType":"semver"},{"lessThan":"2.3.0p52","status":"affected","version":"2.3.0","versionType":"semver"},{"status":"affected","version":"2.2.0","versionType":"semver"}]}],"cveId":"CVE-2026-111573","cwes":["CWE-277"],"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.","epss":{"date":"2026-11-10","percentile":0.02711,"score":0.00131},"exploits":[],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: Checkmk","vector":"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","version":"4.0"},{"score":6.3,"severity":"medium","source":"NVD: security@checkmk.com","vector":"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","version":"4.0"}],"modifiedAt":1794320466299,"publishedAt":1793980780560,"references":[{"source":"CNA: Checkmk","tags":["vendor-advisory"],"url":"https://checkmk.com/werk/19231"},{"source":"security@checkmk.com","tags":[],"url":"https://checkmk.com/werk/19231"}],"remediation":[],"revision":"9c89b30975a983ce47b402bef78643c7635789e5675ff6142023569b348f56ed","sources":[{"modifiedAt":1794320466299,"name":"CNA: Checkmk","retrievedAt":1794323322476,"url":"https://www.cve.org/CVERecord?id=CVE-2026-111573"},{"modifiedAt":1793981859157,"name":"NVD","retrievedAt":1793990207589,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111573"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794323342915,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111573"}],"ssvc":{"assessedAt":1794320452657,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Privilege escalation via unprotected Windows agent data folder","updatedAt":1794323342915}