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CVE-2021-43246

Estado: ModificadaMedia (5.6)—

Una vulnerabilidad de Denegación de Servicio en Windows Hyper-V

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 (4)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-43246",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.6,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 1.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.6,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 1.1
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  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
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          "vendor": "Microsoft",
          "product": "Windows 10 Version 1809",
          "versions": [
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              "version": "10.0.0",
              "lessThan": "10.0.17763.2366",
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          "vendor": "Microsoft",
          "product": "Windows Server 2019",
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              "version": "10.0.0",
              "lessThan": "10.0.17763.2366",
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          "product": "Windows Server 2019 (Server Core installation)",
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          "vendor": "Microsoft",
          "product": "Windows 10 Version 1909",
          "versions": [
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          "product": "Windows 10 Version 21H1",
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              "version": "10.0.0",
              "lessThan": "10.0.19043.1415",
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          "cpes": [
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          "vendor": "Microsoft",
          "product": "Windows Server 2022",
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          "vendor": "Microsoft",
          "product": "Windows 10 Version 2004",
          "versions": [
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          "product": "Windows Server version 20H2",
          "versions": [
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              "status": "affected",
              "version": "10.0.0",
              "lessThan": "10.0.19042.1415",
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          "vendor": "Microsoft",
          "product": "Windows 11 version 21H2",
          "versions": [
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              "status": "affected",
              "version": "10.0.0",
              "lessThan": "10.0.22000.376",
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          "platforms": [
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          "product": "Windows 10 Version 21H2",
          "versions": [
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              "status": "affected",
              "version": "10.0.0",
              "lessThan": "10.0.19044.1415",
              "versionType": "custom"
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          "platforms": [
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  ],
  "published": "2021-12-15T15:15:10.553",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43246",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43246",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Windows Hyper-V Denial of Service Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Denegación de Servicio en Windows Hyper-V"
    }
  ],
  "lastModified": "2026-06-17T04:10:44.033",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "secure@microsoft.com"
}