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CVE-2021-30821

Estado: ModificadaAlta (7.8)—

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

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 (2)

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-30821",
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
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          "confidentialityImpact": "COMPLETE"
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        "obtainAllPrivilege": false,
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  "affected": [
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      "source": "product-security@apple.com",
      "affectedData": [
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          "vendor": "Apple",
          "product": "macOS",
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  "published": "2021-10-28T19:15:09.047",
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      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  "descriptions": [
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      "lang": "en",
      "value": "A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges."
    },
    {
      "lang": "es",
      "value": "Se abordó un problema de corrupción de memoria con un manejo de la memoria mejorada. Este problema se corrigió en macOS Monterey versión 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur versión 11.6.1. Una aplicación maliciosa puede ser capaz de ejecutar código arbitrario con privilegios del kernel"
    }
  ],
  "lastModified": "2026-06-17T03:50:57.187",
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