{"id":"CVE-2025-66003","aliases":["DEBIAN-CVE-2025-66003","DSA-6092-1","EUVD-2026-1571","GHSA-c32g-xjp2-p4pw","UBUNTU-CVE-2025-66003"],"status":"published","title":"Local users can perform a local root exploit via smb4k mounthelper","description":"An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba shareThis issue affects smb4k: from ? before 4.0.5.","severity":{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00121,"percentile":0.01948,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-73"],"published":"2026-01-01T00:00:00Z","modified":"2026-10-17T12:57:29Z","fixes":[{"ecosystem":"Debian:13","package":"smb4k","fixed_in":["4.0.0-1+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"smb4k","fixed_in":["4.0.5-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:13","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.0-1+deb13u1"}]}],"versions":["4.0.0-1"]},{"source":"osv","ecosystem":"Debian:14","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.5-1"}]}],"versions":["4.0.0-1","4.0.4-1"]},{"source":"osv","ecosystem":"Debian:13","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.0-1+deb13u1"}]}],"versions":["4.0.0-1"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.2-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.1-1","2.0.2-1","2.1.0-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.2-1","3.0.3-1","3.0.4-0ubuntu1","3.0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.1-1","3.1.2-0ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2-1","3.2.4-1","3.2.5-1","3.2.5-1build1","3.2.5-1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.0-1","4.0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.6-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"smb4k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.4-1","4.0.5-1","4.0.5-1build1","4.0.6-1"]}],"products":[{"vendor":"https://github.com/kde/","product":"smb4k"}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-66003"},{"url":"https://security.opensuse.org/2025/12/10/smb4k-major-issues-in-kauth-helper.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66003"},{"url":"https://github.com/advisories/GHSA-c32g-xjp2-p4pw"},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-66003","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-66003","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-66003","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2025/12/10/6","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-66003","title":"Local users can perform a local root exploit via smb4k mounthelper","description":"An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba shareThis issue affects smb4k: from ? 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before 4.0.5.","status":"published","published":"2026-01-08T15:31:25Z","modified":"2026-01-08T15:31:34Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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","level":"high"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T15:05:32.392087Z"}],"nvd":[{"id":"CVE-2025-66003","description":"An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba shareThis issue affects smb4k: from ? before 4.0.5.","status":"published","published":"2026-01-08T15:15:43.733Z","modified":"2026-10-11T20:10:00.2Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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","level":"high","assessor":"secondary"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T14:11:56.616231Z"}],"osv":[{"id":"DEBIAN-CVE-2025-66003","description":"An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba shareThis issue affects smb4k: from ? before 4.0.5.","status":"published","published":"2026-01-08T15:15:43.733Z","modified":"2026-10-12T09:47:38.167145447Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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","level":"high"}],"updated_at":"2026-11-02T15:45:47.697959Z"},{"id":"UBUNTU-CVE-2025-66003","description":"An External Control of File Name or Path vulnerability in smb4k allowsl ocal users to perform a local root exploit via smb4k mounthelper if they can access and control the contents of a Samba shareThis issue affects smb4k: from ? before 4.0.5.","status":"published","published":"2026-01-08T15:15:00Z","modified":"2026-10-17T12:57:29.356667844Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T16:55:52.345622Z"},{"id":"DSA-6092-1","title":"smb4k - security update","status":"published","published":"2026-01-01T00:00:00Z","modified":"2026-01-01T23:29:55.668448Z","updated_at":"2026-11-02T15:46:18.296714Z"}]}}