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CVE-2018-8276

Estado: ModificadaMedia (6.5)—

Existe una vulnerabilidad de omisión de la característica de seguridad en el motor de scripting de Microsoft Chakra que permite la omisión de CFG (Control Flow Guard). Esto también se conoce como "Scripting Engine Security Feature Bypass Vulnerability". Esto afecta a Microsoft Edge y ChakraCore.

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-2018-8276",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Edge",
          "versions": [
            {
              "status": "affected",
              "version": "Windows 10 Version 1703 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1703 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1709 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1709 for x64-based Systems"
            },
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              "status": "affected",
              "version": "Windows 10 Version 1803 for 32-bit Systems"
            },
            {
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              "version": "Windows 10 Version 1803 for x64-based Systems"
            }
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  ],
  "published": "2018-07-11T00:29:00.897",
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      "tags": [
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        "VDB Entry"
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1041256",
      "tags": [
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        "VDB Entry"
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      "source": "secure@microsoft.com"
    },
    {
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      "tags": [
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        "Vendor Advisory"
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      "source": "secure@microsoft.com"
    },
    {
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      "tags": [
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        "VDB Entry"
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        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8276",
      "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": "A security feature bypass vulnerability exists in the Microsoft Chakra scripting engine that allows Control Flow Guard (CFG) to be bypassed, aka \"Scripting Engine Security Feature Bypass Vulnerability.\" This affects Microsoft Edge, ChakraCore."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de omisión de la característica de seguridad en el motor de scripting de Microsoft Chakra que permite la omisión de CFG (Control Flow Guard). Esto también se conoce como \"Scripting Engine Security Feature Bypass Vulnerability\". Esto afecta a Microsoft Edge y ChakraCore."
    }
  ],
  "lastModified": "2026-06-17T02:04:32.613",
  "configurations": [
    {
      "nodes": [
        {
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  ],
  "sourceIdentifier": "secure@microsoft.com"
}