Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS

{
  "id": "b4e570702f73255b32292ff2eec095021e5ce255f50a025a33e9cd5a877e42fc",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-92374",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS",
    "summary": "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.",
    "evidence": "cve:CVE-2026-92374",
    "products": [
      {
        "name": {
          "value": "Full Client",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Host",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-92374",
      "aliases": [
        "CVE-2026-92374"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 7.8,
            "attackVector": "LOCAL",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "HIGH"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "TeamViewer",
          "product": "Full Client",
          "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"
            }
          ],
          "platforms": [
            "MacOS"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "TeamViewer",
          "product": "Host",
          "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"
            }
          ],
          "platforms": [
            "MacOS"
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-27T15:09:25.189Z",
      "provider": "cve",
      "references": [
        "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "13430f76-86eb-43b2-a71c-82c956ef31b6",
          "shortName": "TV",
          "dateUpdated": "2026-10-27T15:09:25.189Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-92374",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 394420,
  "published_at": "2026-10-27T15:09:25.189+00:00"
}