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CVE-2026-23565

Estado: AnalizadaMedia (6.5)—

A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause the NomadBranch.exe process to terminate via crafted requests. This can result in a denial-of-service condition of the Content Distribution Service.

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).

Tecnologías afectadas (1)

Teamviewer — Digital Employee Experience

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-23565",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23565",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-29T15:56:53.912682Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@teamviewer.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@teamviewer.com",
      "affectedData": [
        {
          "vendor": "TeamViewer",
          "modules": [
            "Content Distribution Service",
            "NomadBranch.exe"
          ],
          "product": "DEX",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.1",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-01-29T09:16:04.083",
  "references": [
    {
      "url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@teamviewer.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@teamviewer.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause the NomadBranch.exe process to terminate via crafted requests. This can result in a denial-of-service condition of the Content Distribution Service."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en TeamViewer DEX Client (anteriormente 1E Client) - Servicio de Distribución de Contenido (NomadBranch.exe) anterior a la versión 26.1 para Windows permite a un atacante en la red adyacente provocar la terminación del proceso NomadBranch.exe mediante solicitudes manipuladas. Esto puede resultar en una condición de denegación de servicio del Servicio de Distribución de Contenido."
    }
  ],
  "lastModified": "2026-06-17T10:21:47.120",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "26.1"
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          "operator": "OR"
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      "operator": "AND"
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  "sourceIdentifier": "psirt@teamviewer.com"
}