{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92369","assignerOrgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","state":"PUBLISHED","assignerShortName":"TV","dateReserved":"2026-09-16T07:16:01.956Z","datePublished":"2026-09-29T15:39:53.082Z","dateUpdated":"2026-09-30T15:28:19.100Z"},"containers":{"cna":{"providerMetadata":{"orgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","shortName":"TV","dateUpdated":"2026-09-29T15:39:53.082Z"},"title":"Time-of-check Time-of-use (TOCTOU) Race Condition in TeamViewer Windows Installer Rollback Mechanism Leads to Local Privilege Escalation","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-367","description":"CWE-367 Time-of-check time-of-use (TOCTOU) race condition","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-29","descriptions":[{"lang":"en","value":"CAPEC-29 Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions"}]}],"affected":[{"vendor":"TeamViewer","product":"Full Client","platforms":["Windows"],"versions":[{"status":"affected","version":"15.0","lessThan":"15.82","versionType":"custom"},{"status":"affected","version":"15.64.0 (Legacy Windows 7 & 8)","lessThan":"15.64.8 (Legacy Windows 7 & 8)","versionType":"custom"},{"status":"affected","version":"14.7.0","lessThan":"14.7.48855","versionType":"custom"},{"status":"affected","version":"13.2.0","lessThan":"13.2.36230","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TeamViewer","product":"Host","platforms":["Windows"],"versions":[{"status":"affected","version":"15.0","lessThan":"15.82","versionType":"custom"},{"status":"affected","version":"15.64.0 (Legacy Windows 7 & 8)","lessThan":"15.64.8 (Legacy Windows 7 & 8)","versionType":"custom"},{"status":"affected","version":"14.7.0","lessThan":"14.7.48855","versionType":"custom"},{"status":"affected","version":"13.2.0","lessThan":"13.2.36230","versionType":"custom"}],"defaultStatus":"unaffected"}],"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. 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.","supportingMedia":[{"type":"text/html","base64":false,"value":"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.  "}]}],"references":[{"url":"https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010/","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.3,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"}}],"solutions":[{"lang":"en","value":"Update to the latest version.","supportingMedia":[{"type":"text/html","base64":false,"value":"Update to the latest version."}]}],"credits":[{"lang":"en","value":"We thank Romain Igounet and Hugo Leclercq for the discovery and responsible disclosure.","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-92369","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-09-30T15:15:35.268669Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-30T15:28:19.100Z"}}]}}