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CVE-2019-1221

Estado: ModificadaAlta (7.5)—💥 PoC

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption 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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Microsoft — Internet Explorer

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2019-1221",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 7.6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 1.6
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  "affected": [
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            },
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            },
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              "version": "Windows Server 2019"
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              "version": "Windows 10 Version 1709 for ARM64-based Systems"
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          "product": "Internet Explorer 11 on Windows Server 2012",
          "versions": [
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          "vendor": "Microsoft",
          "product": "Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems",
          "versions": [
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              "status": "affected",
              "version": "unspecified"
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          "product": "Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems",
          "versions": [
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              "version": "unspecified"
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        {
          "vendor": "Microsoft",
          "product": "Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems",
          "versions": [
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              "status": "affected",
              "version": "unspecified"
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  ],
  "published": "2019-09-11T22:15:14.960",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1221",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1221",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de ejecución de código remota en la manera en que el motor de scripting maneja los objetos en la memoria en Internet Explorer, también se conoce como \"Scripting Engine Memory Corruption Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-17T02:28:06.690",
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}