{"id":"CVE-2026-92374","state":"PUBLISHED","title":"Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS","description":"A time-of-check time-of-use (TOCTOU) race condition combined with improper symbolic link handling in the privileged helper of TeamViewer Full Client and Host prior to version 15.83 for macOS allows a local attacker with low privileges to bypass installer package verification and install a malicious package. Successful exploitation can lead to local privilege escalation to root.","publishedAt":"2026-10-27T15:09:25.189Z","updatedAt":"2026-10-27T15:09:25.189Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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":"0","status":"affected","lessThan":"15.83","versionType":"custom"},{"version":"14.7.0","status":"affected","lessThan":"14.7.48868","versionType":"custom"},{"version":"13.2.0","status":"affected","lessThan":"13.2.154007","versionType":"custom"}],"platforms":["MacOS"]},{"vendor":"TeamViewer","product":"Host","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.83","versionType":"custom"},{"version":"14.7.0","status":"affected","lessThan":"14.7.48868","versionType":"custom"},{"version":"13.2.0","status":"affected","lessThan":"13.2.154007","versionType":"custom"}],"platforms":["MacOS"]}],"references":["https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/"],"weaknesses":["CWE-367"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92374.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92374","state":"PUBLISHED","datePublished":"2026-10-27T15:09:25.189Z","dateUpdated":"2026-10-27T15:09:25.189Z","assignerShortName":"TV","assignerOrgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","dateReserved":"2026-09-16T07:16:01.956Z"},"containers":{"cna":{"title":"Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS","descriptions":[{"lang":"en","value":"A time-of-check time-of-use (TOCTOU) race condition combined with improper symbolic link handling in the privileged helper of TeamViewer Full Client and Host prior to version 15.83 for macOS allows a local attacker with low privileges to bypass installer package verification and install a malicious package. Successful exploitation can lead to local privilege escalation to root."}],"affected":[{"vendor":"TeamViewer","product":"Full Client","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.83","versionType":"custom"},{"version":"14.7.0","status":"affected","lessThan":"14.7.48868","versionType":"custom"},{"version":"13.2.0","status":"affected","lessThan":"13.2.154007","versionType":"custom"}],"platforms":["MacOS"]},{"vendor":"TeamViewer","product":"Host","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"15.83","versionType":"custom"},{"version":"14.7.0","status":"affected","lessThan":"14.7.48868","versionType":"custom"},{"version":"13.2.0","status":"affected","lessThan":"13.2.154007","versionType":"custom"}],"platforms":["MacOS"]}],"references":[{"url":"https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.8,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-367","lang":"en","description":"CWE-367 Time-of-check time-of-use (TOCTOU) race condition","type":"CWE"}]}],"providerMetadata":{"shortName":"TV","orgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","dateUpdated":"2026-10-27T15:09:25.189Z"},"solutions":[{"lang":"en","value":"Update to the latest available version.","supportingMedia":[{"type":"text/html","base64":false,"value":"Update to the latest available version."}]}],"credits":[{"lang":"en","value":"HeaZzy (Mathys KHALFA) & skav (Antoine RIEUL)","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}}