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CVE-2019-1074

Estado: ModificadaMedia (5.5)—

Existe una vulnerabilidad de elevación de privilegios en Microsoft Windows donde determinadas carpetas, con privilegios de servicio local, son vulnerables a un ataque de enlace simbólico. Un atacante que explotó con éxito esta vulnerabilidad podría acceder potencialmente a información no autorizada. La actualización aborda esta vulnerabilidad mediante la prohibición de enlaces simbólicos en estos escenarios, también se conoce como "Microsoft Windows Elevation of Privilege Vulnerability". El ID de este CVE es diferente de CVE-2019-1082.

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-2019-1074",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows",
          "versions": [
            {
              "status": "affected",
              "version": "10 Version 1709 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1709 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1803 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1803 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1803 for ARM64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1809 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1809 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1809 for ARM64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1709 for ARM64-based Systems"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server",
          "versions": [
            {
              "status": "affected",
              "version": "version 1803  (Core Installation)"
            },
            {
              "status": "affected",
              "version": "2019"
            },
            {
              "status": "affected",
              "version": "2019  (Core installation)"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 10 Version 1903 for 32-bit Systems",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 10 Version 1903 for x64-based Systems",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 10 Version 1903 for ARM64-based Systems",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server, version 1903 (Server Core installation)",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-07-15T19:15:17.263",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1074",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1074",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An elevation of privilege vulnerability exists in Microsoft Windows where certain folders, with local service privilege, are vulnerable to symbolic link attack. An attacker who successfully exploited this vulnerability could potentially access unauthorized information. The update addresses this vulnerability by not allowing symbolic links in these scenarios., aka 'Microsoft Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1082."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de elevación de privilegios en Microsoft Windows donde determinadas carpetas, con privilegios de servicio local, son vulnerables a un ataque de enlace simbólico. Un atacante que explotó con éxito esta vulnerabilidad podría acceder potencialmente a información no autorizada. La actualización aborda esta vulnerabilidad mediante la prohibición de enlaces simbólicos en estos escenarios, también se conoce como \"Microsoft Windows Elevation of Privilege Vulnerability\". El ID de este CVE es diferente de CVE-2019-1082."
    }
  ],
  "lastModified": "2026-06-17T02:27:46.190",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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            },
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          "operator": "OR"
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  "sourceIdentifier": "secure@microsoft.com"
}