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CVE-2020-16910

Estado: ModificadaMedia (5.5)—

Se presenta una vulnerabilidad de omisión de la característica de seguridad cuando Microsoft Windows presenta un fallo al manejar permisos de creación de archivos, lo que podría permitir a un atacante crear archivos en una ubicación protegida de Unified Extensible Firmware Interface (UEFI). Para explotar esta vulnerabilidad, un atacante podría correr una aplicación especialmente diseñada para omitir la seguridad variable de Unified Extensible Firmware Interface (UEFI) en Windows. La actualización de seguridad aborda la vulnerabilidad mediante la corrección del comportamiento de la característica de seguridad para hacer cumplir los permisos, también se conoce como "Windows Security Feature Bypass Vulnerability"

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 (3)

Microsoft — Windows 10Microsoft — Windows Server 2016Microsoft — Windows Server 2019

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-16910",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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  "published": "2020-10-16T23:15:14.257",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16910",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16910",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-281"
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  "descriptions": [
    {
      "lang": "en",
      "value": "<p>A security feature bypass vulnerability exists when Microsoft Windows fails to handle file creation permissions, which could allow an attacker to create files in a protected Unified Extensible Firmware Interface (UEFI) location.</p>\n<p>To exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.</p>\n<p>The security update addresses the vulnerability by correcting security feature behavior to enforce permissions.</p>"
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de omisión de la característica de seguridad cuando Microsoft Windows presenta un fallo al manejar permisos de creación de archivos, lo que podría permitir a un atacante crear archivos en una ubicación protegida de Unified Extensible Firmware Interface (UEFI). Para explotar esta vulnerabilidad, un atacante podría correr una aplicación especialmente diseñada para omitir la seguridad variable de Unified Extensible Firmware Interface (UEFI) en Windows. La actualización de seguridad aborda la vulnerabilidad mediante la corrección del comportamiento de la característica de seguridad para hacer cumplir los permisos, también se conoce como \"Windows Security Feature Bypass Vulnerability\""
    }
  ],
  "lastModified": "2026-06-17T02:58:14.820",
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