« Volver al listado

CVE-2026-92369

Estado: AplazadaAlta (7.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

TOCTOU en mecanismo de rollback del instalador elevado permite escalada a SYSTEM (T1548.002). Acceso a archivos en directorio temporal writable facilita persistencia mediante tareas programadas (T1053.005). Requiere privilegios locales e interacción del usuario (rollback durante actualización).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementAuditUpdate SoftwareUser Account ManagementOperating System ConfigurationApplication Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Teamviewer — TeamviewerAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-92369",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-92369",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-30T15:15:35.268669Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@teamviewer.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.3,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.3
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@teamviewer.com",
      "affectedData": [
        {
          "vendor": "TeamViewer",
          "product": "Full Client",
          "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"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "TeamViewer",
          "product": "Host",
          "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"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-29T16:17:14.890",
  "references": [
    {
      "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010/",
      "source": "psirt@teamviewer.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@teamviewer.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "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."
    }
  ],
  "lastModified": "2026-09-30T16:19:24.920",
  "sourceIdentifier": "psirt@teamviewer.com"
}