{"id":"CVE-2023-27323","aliases":["EUVD-2023-31099","GHSA-2wx8-vvfc-5r8w"],"status":"published","title":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability","description":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.\n. Was ZDI-CAN-18150.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00201,"percentile":0.10103,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2024-05-03T01:55:48Z","modified":"2026-06-17T05:44:47Z","products":[{"vendor":"parallels","product":"desktop"},{"vendor":"parallels","product":"parallels_desktop"},{"vendor":"zen-browser","product":"desktop"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-217/","tags":["x_research-advisory","x_transferred","Third Party Advisory"]},{"url":"https://kb.parallels.com/125013","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27323"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-217"},{"url":"https://github.com/advisories/GHSA-2wx8-vvfc-5r8w"}],"sources":{"cve":[{"id":"CVE-2023-27323","title":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability","description":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.\n. Was ZDI-CAN-18150.","status":"published","published":"2024-05-03T01:55:48.942Z","modified":"2024-09-18T18:27:58.822Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:35:26.261013Z"}],"euvd":[{"id":"EUVD-2023-31099","description":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.\n. Was ZDI-CAN-18150.","status":"published","published":"2024-05-03T01:55:48Z","modified":"2024-09-18T18:27:58Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:20.565617Z"}],"ghsa":[{"id":"GHSA-2wx8-vvfc-5r8w","title":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability....","description":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-18150.","status":"published","published":"2024-05-03T03:30:47Z","modified":"2024-05-03T03:31:15Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:57:17.176344Z"}],"nvd":[{"id":"CVE-2023-27323","description":"Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.\n. Was ZDI-CAN-18150.","status":"published","published":"2024-05-03T02:15:08.463Z","modified":"2026-06-17T05:44:47.437Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:09:11.362739Z"}]}}