{"id":"CVE-2025-39666","summary":"omd: Local privilege escalation when executing omd commands as root","details":"Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root.","modified":"2026-10-28T02:30:49.239763921Z","published":"2026-04-07T12:09:07.609Z","database_specific":{"cna_assigner":"Checkmk","cwe_ids":["CWE-426","CWE-829"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39666.json","unresolved_ranges":[{"extracted_events":[{"strategy":"StandaloneSingleVersion","range":[{"introduced":"2.2.0"},{"last_affected":"2.2.0"}],"source":"AFFECTED_FIELD"}]},{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"2.3.0"},{"fixed":"2.3.0p46"},{"introduced":"2.4.0"},{"fixed":"2.4.0p25"},{"introduced":"2.5.0b1"},{"fixed":"2.5.0b3"}],"source":"AFFECTED_FIELD"}]}]},"references":[{"type":"ADVISORY","url":"https://checkmk.com/werk/18891"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39666.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39666"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/checkmk/checkmk","events":[{"introduced":"d6049cd2d82eba3842b30c305912b9e946842463"},{"last_affected":"9d359063c46ab507adf638335cc5e50aecf3157d"}],"database_specific":{"extracted_events":[{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:-:*:*:*:*:*:*","range":[{"introduced":"2.2.0-NA"},{"last_affected":"2.2.0-NA"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b1:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b1"},{"last_affected":"2.2.0-b1"}]},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:i1:*:*:*:*:*:*","range":[{"introduced":"2.2.0-i1"},{"last_affected":"2.2.0-i1"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p1:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p1"},{"last_affected":"2.2.0-p1"}]},{"range":[{"introduced":"2.2.0-b2"},{"last_affected":"2.2.0-b2"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b2:*:*:*:*:*:*"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p2:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p2"},{"last_affected":"2.2.0-p2"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b3:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b3"},{"last_affected":"2.2.0-b3"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p3:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p3"},{"last_affected":"2.2.0-p3"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b4:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b4"},{"last_affected":"2.2.0-b4"}]},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p4:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p4"},{"last_affected":"2.2.0-p4"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b5:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b5"},{"last_affected":"2.2.0-b5"}]},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p5:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p5"},{"last_affected":"2.2.0-p5"}],"source":"CPE_STRING"},{"range":[{"introduced":"2.2.0-b6"},{"last_affected":"2.2.0-b6"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b6:*:*:*:*:*:*"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p6:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p6"},{"last_affected":"2.2.0-p6"}]},{"range":[{"introduced":"2.2.0-b7"},{"last_affected":"2.2.0-b7"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b7:*:*:*:*:*:*"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p7:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p7"},{"last_affected":"2.2.0-p7"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:b8:*:*:*:*:*:*","range":[{"introduced":"2.2.0-b8"},{"last_affected":"2.2.0-b8"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p8:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p8"},{"last_affected":"2.2.0-p8"}]},{"range":[{"introduced":"2.2.0-p10"},{"last_affected":"2.2.0-p10"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p10:*:*:*:*:*:*"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p11:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p11"},{"last_affected":"2.2.0-p11"}]},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p12:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p12"},{"last_affected":"2.2.0-p12"}],"source":"CPE_STRING"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p13:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p13"},{"last_affected":"2.2.0-p13"}],"source":"CPE_STRING"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p14:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p14"},{"last_affected":"2.2.0-p14"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p15:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p15"},{"last_affected":"2.2.0-p15"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p16:*:*:*:*:*:*","range":[{"introduced":"2.2.0-p16"},{"last_affected":"2.2.0-p16"}]},{"range":[{"introduced":"2.2.0-p17"},{"last_affected":"2.2.0-p17"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p17:*:*:*:*:*:*"},{"cpe":"cpe:2.3:a:checkmk:checkmk:2.2.0:p18:*:*:*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