{"id":"UBUNTU-CVE-2025-64996","details":"In Checkmk versions prior to 2.4.0p16, 2.3.0p41, and all versions of 2.2.0 and older, the mk_inotify plugin creates world-readable and writable files, allowing any local user on the system to read the plugin's output and manipulate it, potentially leading to unauthorized access to or modification of monitoring data.","modified":"2025-11-27T08:11:39.835466Z","published":"2025-11-18T16:15:00Z","upstream":["CVE-2025-64996"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-64996"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-64996"},{"type":"REPORT","url":"https://checkmk.com/werk/18570"}],"affected":[{"package":{"name":"check-mk","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/check-mk@1.2.6p12-1ubuntu0.16.04.1+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.6p5-1","1.2.6p12-1","1.2.6p12-1ubuntu0.16.04.1","1.2.6p12-1ubuntu0.16.04.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-agent"},{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-agent-logwatch"},{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-config-icinga"},{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-config-nagios3"},{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-livestatus"},{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-multisite"},{"binary_version":"1.2.6p12-1ubuntu0.16.04.1+esm1","binary_name":"check-mk-server"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64996.json"}},{"package":{"name":"check-mk","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/check-mk@1.2.8p16-1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.8p16-1ubuntu0.1","1.2.8p16-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.8p16-1ubuntu0.2","binary_name":"check-mk-agent"},{"binary_version":"1.2.8p16-1ubuntu0.2","binary_name":"check-mk-agent-logwatch"},{"binary_version":"1.2.8p16-1ubuntu0.2","binary_name":"check-mk-config-icinga"},{"binary_version":"1.2.8p16-1ubuntu0.2","binary_name":"check-mk-livestatus"},{"binary_version":"1.2.8p16-1ubuntu0.2","binary_name":"check-mk-multisite"},{"binary_version":"1.2.8p16-1ubuntu0.2","binary_name":"check-mk-server"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64996.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}