{"id":"CVE-2026-12703","state":"PUBLISHED","title":"Bypass of 2FA for Connections via Unattended Access in TeamViewer for macOS","description":"TeamViewer Full Client and Host for macOS before version 15.80 contain a business logic error that can allow an authenticated attacker to bypass a configured 2FA for Connections approval flow via Unattended Access and establish a remote connection to an affected macOS host.","publishedAt":"2026-07-29T14:13:19.692Z","updatedAt":"2026-07-29T15:07:08.712Z","severity":{"score":8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","source":"TV"},"assigner":"TV","products":["TeamViewer Remote","TeamViewer Tensor","TeamViewer ONE"],"affected":[{"vendor":"TeamViewer","product":"Remote","defaultStatus":"unaffected","versions":[{"version":"15.00","status":"affected","lessThan":"15.80","versionType":"custom"}],"platforms":["MacOS"],"modules":["Full Client","Host"]},{"vendor":"TeamViewer","product":"Tensor","defaultStatus":"unaffected","versions":[{"version":"15.00","status":"affected","lessThan":"15.80","versionType":"custom"}],"platforms":["MacOS"],"modules":["Full Client","Host"]},{"vendor":"TeamViewer","product":"ONE","defaultStatus":"unaffected","versions":[{"version":"15.00","status":"affected","lessThan":"15.80","versionType":"custom"}],"platforms":["MacOS"],"modules":["Full Client","Host"]}],"references":["https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1007/"],"weaknesses":["CWE-288"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12703.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12703","state":"PUBLISHED","datePublished":"2026-07-29T14:13:19.692Z","dateUpdated":"2026-07-29T15:07:08.712Z","assignerShortName":"TV","assignerOrgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","dateReserved":"2026-06-19T10:17:46.376Z"},"containers":{"cna":{"title":"Bypass of 2FA for Connections via Unattended Access in TeamViewer for macOS","descriptions":[{"lang":"en","value":"TeamViewer Full Client and Host for macOS before version 15.80 contain a business logic error that can allow an authenticated attacker to bypass a configured 2FA for Connections approval flow via Unattended Access and establish a remote connection to an affected macOS host."}],"affected":[{"vendor":"TeamViewer","product":"Remote","defaultStatus":"unaffected","versions":[{"version":"15.00","status":"affected","lessThan":"15.80","versionType":"custom"}],"platforms":["MacOS"],"modules":["Full Client","Host"]},{"vendor":"TeamViewer","product":"Tensor","defaultStatus":"unaffected","versions":[{"version":"15.00","status":"affected","lessThan":"15.80","versionType":"custom"}],"platforms":["MacOS"],"modules":["Full Client","Host"]},{"vendor":"TeamViewer","product":"ONE","defaultStatus":"unaffected","versions":[{"version":"15.00","status":"affected","lessThan":"15.80","versionType":"custom"}],"platforms":["MacOS"],"modules":["Full Client","Host"]}],"references":[{"url":"https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1007/","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-288","lang":"en","description":"CWE-288 Authentication bypass using an alternate path or channel","type":"CWE"}]}],"providerMetadata":{"shortName":"TV","orgId":"13430f76-86eb-43b2-a71c-82c956ef31b6","dateUpdated":"2026-07-29T14:13:19.692Z"},"impacts":[{"capecId":"CAPEC-115","descriptions":[{"lang":"en","value":"CAPEC-115 Authentication Bypass"}]}],"solutions":[{"lang":"en","value":"Update to the latest version (15.80 or the latest version available)","supportingMedia":[{"type":"text/html","base64":false,"value":"Update to the latest version (15.80 or the latest version available)"}]}],"credits":[{"lang":"en","value":"We thank dameb for the discovery and responsible disclosure","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T15:07:03.248622Z","id":"CVE-2026-12703","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T15:07:08.712Z"}}]}}}