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CVE-2021-40486

Estado: ModificadaAlta (7.8)—

Microsoft Word Remote Code Execution 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 (6)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-40486",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 1.8
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        "source": "nvd@nist.gov",
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          "scope": "UNCHANGED",
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          "vendor": "Microsoft",
          "product": "Microsoft Office 2019",
          "versions": [
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              "version": "19.0.0",
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
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          "product": "Microsoft Office Web Apps Server 2013 Service Pack 1",
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          "product": "Microsoft Word 2013 Service Pack 1",
          "versions": [
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              "version": "15.0.1",
              "lessThan": "15.0.5389.1000",
              "versionType": "custom"
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  ],
  "published": "2021-10-13T01:15:12.127",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40486",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1158/",
      "tags": [
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      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40486",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1158/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Word Remote Code Execution Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Ejecución de Código Remota de Microsoft Word"
    }
  ],
  "lastModified": "2026-06-17T04:07:01.297",
  "configurations": [
    {
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}