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CVE-2020-1493

Estado: ModificadaMedia (5.5)—💥 PoC

An information disclosure vulnerability exists when attaching files to Outlook messages. This vulnerability could potentially allow users to share attached files such that they are accessible by anonymous users where they should be restricted to specific users. To exploit this vulnerability, an attacker would have to attach a file as a link to an email. The email could then be shared with individuals that should not have access to the files, ignoring the default organizational setting. The security update addresses the vulnerability by correcting how Outlook handles file attachment links.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (3)

Microsoft — 365 AppsMicrosoft — OfficeMicrosoft — Outlook

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-1493",
  "cveTags": [],
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "role": "CISA Coordinator",
          "options": [
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            },
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2024-06-03T20:23:10.482705Z"
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
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          "confidentialityImpact": "PARTIAL"
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        "obtainAllPrivilege": false,
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    "cvssMetricV31": [
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      "tags": [
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        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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  "descriptions": [
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      "value": "An information disclosure vulnerability exists when attaching files to Outlook messages. This vulnerability could potentially allow users to share attached files such that they are accessible by anonymous users where they should be restricted to specific users.\nTo exploit this vulnerability, an attacker would have to attach a file as a link to an email. The email could then be shared with individuals that should not have access to the files, ignoring the default organizational setting.\nThe security update addresses the vulnerability by correcting how Outlook handles file attachment links."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de divulgación de información al adjuntar archivos a mensajes de Outlook, también se conoce como \"Microsoft Outlook Information Disclosure Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-17T03:01:33.663",
  "configurations": [
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}