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CVE-2021-27090

Estado: ModificadaAlta (7.8)—

Una vulnerabilidad de Elevación de Privilegios en Windows Secure Kernel Mode

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 (2)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-27090",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Secondary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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  "affected": [
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      "affectedData": [
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          ],
          "vendor": "Microsoft",
          "product": "Windows 10 Version 2004",
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              "version": "10.0.0",
              "lessThan": "publication",
              "versionType": "custom"
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            "ARM64-based Systems",
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          "vendor": "Microsoft",
          "product": "Windows Server version 2004",
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          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:arm64:*"
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          "vendor": "Microsoft",
          "product": "Windows 10 Version 20H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.0",
              "lessThan": "publication",
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            "32-bit Systems",
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          ],
          "vendor": "Microsoft",
          "product": "Windows Server version 20H2",
          "versions": [
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              "status": "affected",
              "version": "10.0.0",
              "lessThan": "publication",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        }
      ]
    }
  ],
  "published": "2021-04-13T20:15:15.780",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27090",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27090",
      "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 Secure Kernel Mode Elevation of Privilege Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Elevación de Privilegios en Windows Secure Kernel Mode"
    }
  ],
  "lastModified": "2026-06-17T03:44:16.210",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*",
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            },
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            },
            {
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              "matchCriteriaId": "4A190388-AA82-4504-9D5A-624F23268C9F"
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              "matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82"
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          "operator": "OR"
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  ],
  "sourceIdentifier": "secure@microsoft.com"
}