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CVE-2017-8521

Estado: ModificadaAlta (7.5)—

Microsoft Edge en Windows 10 versión 1703, permite a un atacante ejecutar código arbitrario en el contexto del usuario actual cuando el motor de scripting de JavaScript de Edge no maneja objetos en la memoria, también se conoce como "Scripting Engine Memory Corruption Vulnerability". El ID de este CVE es diferente de CVE-2017-8499, CVE-2017-8520, CVE-2017-8548 y CVE-2017-8549.

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 (1)

Microsoft — Edge

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-8521",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft Corporation",
          "product": "Microsoft Edge",
          "versions": [
            {
              "status": "affected",
              "version": "Microsoft Windows 10 1703."
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-06-15T01:29:04.133",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/98925",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8521",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98925",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8521",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Edge in Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user when the Edge JavaScript scripting engine fails to handle objects in memory, aka \"Scripting Engine Memory Corruption Vulnerability\". This CVE ID is unique from CVE-2017-8499, CVE-2017-8520, CVE-2017-8548, and CVE-2017-8549."
    },
    {
      "lang": "es",
      "value": "Microsoft Edge en Windows 10 versión 1703, permite a un atacante ejecutar código arbitrario en el contexto del usuario actual cuando el motor de scripting de JavaScript de Edge no maneja objetos en la memoria, también se conoce como \"Scripting Engine Memory Corruption Vulnerability\". El ID de este CVE es diferente de CVE-2017-8499, CVE-2017-8520, CVE-2017-8548 y CVE-2017-8549."
    }
  ],
  "lastModified": "2026-06-17T01:26:30.780",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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          "operator": "OR"
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  ],
  "sourceIdentifier": "secure@microsoft.com"
}