{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-92374", "assignerOrgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "state": "PUBLISHED", "assignerShortName": "TV", "dateReserved": "2026-09-16T07:16:01.956Z", "datePublished": "2026-10-27T15:09:25.189Z", "dateUpdated": "2026-10-27T15:09:25.189Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "13430f76-86eb-43b2-a71c-82c956ef31b6", "shortName": "TV", "dateUpdated": "2026-10-27T15:09:25.189Z"}, "title": "Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-367", "description": "CWE-367 Time-of-check time-of-use (TOCTOU) race condition", "type": "CWE"}]}], "affected": [{"vendor": "TeamViewer", "product": "Full Client", "platforms": ["MacOS"], "versions": [{"status": "affected", "version": "0", "lessThan": "15.83", "versionType": "custom"}, {"status": "affected", "version": "14.7.0", "lessThan": "14.7.48868", "versionType": "custom"}, {"status": "affected", "version": "13.2.0", "lessThan": "13.2.154007", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TeamViewer", "product": "Host", "platforms": ["MacOS"], "versions": [{"status": "affected", "version": "0", "lessThan": "15.83", "versionType": "custom"}, {"status": "affected", "version": "14.7.0", "lessThan": "14.7.48868", "versionType": "custom"}, {"status": "affected", "version": "13.2.0", "lessThan": "13.2.154007", "versionType": "custom"}], "defaultStatus": "unaffected"}], "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.", "supportingMedia": [{"type": "text/html", "base64": false, "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.\u202f "}]}], "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"}}], "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"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["MacOS"], "product": "Full Client", "vendor": "TeamViewer", "versions": [{"lessThan": "15.83", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "14.7.48868", "status": "affected", "version": "14.7.0", "versionType": "custom"}, {"lessThan": "13.2.154007", "status": "affected", "version": "13.2.0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "platforms": ["MacOS"], "product": "Host", "vendor": "TeamViewer", "versions": [{"lessThan": "15.83", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "14.7.48868", "status": "affected", "version": "14.7.0", "versionType": "custom"}, {"lessThan": "13.2.154007", "status": "affected", "version": "13.2.0", "versionType": "custom"}]}], "source": "psirt@teamviewer.com"}], "cveTags": [], "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."}], "id": "CVE-2026-92374", "lastModified": "2026-10-27T16:17:31.873", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "psirt@teamviewer.com", "type": "Secondary"}]}, "published": "2026-10-27T16:17:31.873", "references": [{"source": "psirt@teamviewer.com", "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/"}], "sourceIdentifier": "psirt@teamviewer.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "psirt@teamviewer.com", "type": "Secondary"}]}

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