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CVE-2020-27917

Estado: ModificadaAlta (7.8)—

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to code execution.

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 (7)

Apple — IcloudApple — IpadosApple — Iphone OSApple — ItunesApple — MacosApple — TvosApple — Watchos

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-27917",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
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  "affected": [
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              "version": "unspecified",
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          "product": "iOS and iPadOS",
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          "product": "tvOS",
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              "version": "unspecified",
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          "vendor": "Apple",
          "product": "macOS",
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              "version": "unspecified",
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        {
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          "product": "macOS",
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              "version": "unspecified",
              "lessThan": "12.11",
              "versionType": "custom"
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        {
          "vendor": "Apple",
          "product": "macOS",
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              "status": "affected",
              "version": "unspecified",
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              "versionType": "custom"
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  ],
  "published": "2020-12-08T21:15:13.530",
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      "tags": [
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      "tags": [
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      "source": "product-security@apple.com"
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    {
      "url": "https://support.apple.com/en-us/HT211933",
      "tags": [
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      "source": "product-security@apple.com"
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      "tags": [
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    },
    {
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      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT211935",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to code execution."
    },
    {
      "lang": "es",
      "value": "Se abordó un problema de uso de la memoria previamente liberada con una administración de la memoria mejorada. Este problema se corrigió en macOS Big Sur versión 11.0.1, watchOS versión 7.1, iOS versión 14.2 y iPadOS versión 14.2, iCloud para Windows versión 11.5, tvOS versión 14.2, iTunes versión 12.11 para Windows. El procesamiento de contenido web diseñado maliciosamente puede conllevar a una ejecución de código"
    }
  ],
  "lastModified": "2026-06-17T03:09:52.120",
  "configurations": [
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}