{"id":"CVE-2026-92369","state":"PUBLISHED","title":"Time-of-check Time-of-use (TOCTOU) Race Condition in TeamViewer Windows Installer Rollback Mechanism Leads to Local Privilege Escalation","description":"TeamViewer Full Client and Host prior to version 15.82 on Windows contain a TOCTOU race condition in the installer rollback mechanism. A local low-privileged attacker can replace rollback backup files stored in a user-writable temporary directory before they are restored by an elevated installer, resulting in privilege escalation to NT AUHORITY/SYSTEM. Exploitation requires successful timing of the race condition and a rollback during installation or update.","publishedAt":"2026-09-29T15:39:53.082Z","updatedAt":"2026-09-30T15:28:19.100Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","source":"TV"},"assigner":"TV","products":["TeamViewer Full Client","TeamViewer Host"],"affected":[{"vendor":"TeamViewer","product":"Full Client","defaultStatus":"unaffected","versions":[{"version":"15.0","status":"affected","lessThan":"15.82","versionType":"custom"},{"version":"15.64.0 (Legacy Windows 7 & 8)","status":"affected","lessThan":"15.64.8 (Legacy Windows 7 & 8)","versionType":"custom"},{"version":"14.7.0","status":"affected","lessThan":"14.7.48855","versionType":"custom"},{"version":"13.2.0","status":"affected","lessThan":"13.2.36230","versionType":"custom"}],"platforms":["Windows"]},{"vendor":"TeamViewer","product":"Host","defaultStatus":"unaffected","versions":[{"version":"15.0","status":"affected","lessThan":"15.82","versionType":"custom"},{"version":"15.64.0 (Legacy Windows 7 & 8)","status":"affected","lessThan":"15.64.8 (Legacy Windows 7 & 8)","versionType":"custom"},{"version":"14.7.0","status":"affected","lessThan":"14.7.48855","versionType":"custom"},{"version":"13.2.0","status":"affected","lessThan":"13.2.36230","versionType":"custom"}],"platforms":["Windows"]}],"references":["https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010/"],"weaknesses":["CWE-367"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92369.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92369","state":"PUBLISHED","datePublished":"2026-09-29T15:39:53.082Z","dateUpdated":"2026-09-30T15:28:19.100Z","assignerShortName":"TV","assignerOrgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","dateReserved":"2026-09-16T07:16:01.956Z"},"containers":{"cna":{"title":"Time-of-check Time-of-use (TOCTOU) Race Condition in TeamViewer Windows Installer Rollback Mechanism Leads to Local Privilege Escalation","descriptions":[{"lang":"en","value":"TeamViewer Full Client and Host prior to version 15.82 on Windows contain a TOCTOU race condition in the installer rollback mechanism. 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