{"id":"CVE-2021-38085","aliases":["EUVD-2021-24558","GHSA-jp55-93wh-x75g"],"status":"published","title":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue....","description":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00981,"percentile":0.62709,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-269","CWE-732"],"published":"2021-08-11T17:39:38Z","modified":"2026-06-17T04:01:26Z","exploits":[{"source":"metasploit","id":"exploit/windows/local/canon_driver_privesc","title":"Canon Driver Privilege Escalation","type":"exploit","platform":"Windows","date":"2021-08-07","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/local/canon_driver_privesc"}],"products":[{"vendor":"canon","product":"pixma_tr150_firmware"}],"references":[{"url":"https://defcon.org/html/defcon-29/dc-29-speakers.html#baines","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txt","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.youtube.com/watch?v=vdesswZYz-8","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38085"},{"url":"https://github.com/advisories/GHSA-jp55-93wh-x75g"}],"sources":{"cve":[{"id":"CVE-2021-38085","description":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).","status":"published","published":"2021-08-11T17:39:38Z","modified":"2024-08-04T01:30:09.066Z","updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-24558","description":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).","status":"published","published":"2021-08-11T17:39:38Z","modified":"2024-08-04T01:30:09Z","updated_at":"2026-11-03T03:24:25.678078Z"}],"ghsa":[{"id":"GHSA-jp55-93wh-x75g","title":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue....","description":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).","status":"published","published":"2022-05-24T19:10:40Z","modified":"2023-01-30T05:01:29Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269","CWE-732"],"updated_at":"2026-11-02T14:46:25.069065Z"}],"nvd":[{"id":"CVE-2021-38085","description":"The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).","status":"published","published":"2021-08-11T18:15:07.5Z","modified":"2026-06-17T04:01:26.17Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:06:56.943671Z"}]}}