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CVE-2020-27920

Status: ModifiedHigh (8.8)—

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, watchOS 7.1, tvOS 14.2. Processing maliciously crafted web content may lead to code execution.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (5)

Apple — IpadosApple — Iphone OSApple — MAC OS XApple — TvosApple — Watchos

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-27920",
  "cveTags": [],
  "metrics": {
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          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
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        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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          "confidentialityImpact": "HIGH"
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  "affected": [
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          "product": "watchOS",
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  "published": "2021-04-02T18:15:15.637",
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      "description": [
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          "value": "CWE-416"
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  ],
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      "value": "A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, watchOS 7.1, tvOS 14.2. 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 es corregido en macOS Big Sur versión 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur versión 11.0.1, iOS versión 14.2 y iPadOS versión 14.2, watchOS versión 7.1, tvOS versión 14.2. El procesamiento de contenido web diseñado malicioso puede conllevar a una ejecución de código."
    }
  ],
  "lastModified": "2026-06-17T03:09:52.520",
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