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CVE-2020-9954

Status: ModifiedHigh (7.8)—

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in watchOS 7.0, tvOS 14.0, macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave, iOS 14.0 and iPadOS 14.0. Playing a malicious audio file may lead to arbitrary 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-2020-9954",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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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",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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    "cvssMetricV31": [
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          "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"
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        "impactScore": 5.9,
        "exploitabilityScore": 1.8
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  "affected": [
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      "affectedData": [
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          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
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          "product": "watchOS",
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  "published": "2020-12-08T20:15:16.997",
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      "url": "https://support.apple.com/en-us/HT211843",
      "tags": [
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      "source": "product-security@apple.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A buffer overflow issue was addressed with improved memory handling. This issue is fixed in watchOS 7.0, tvOS 14.0, macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave, iOS 14.0 and iPadOS 14.0. Playing a malicious audio file may lead to arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "Se abordó un problema de desbordamiento del búfer con un manejo de la memoria mejorada. Este problema se corrigió en watchOS versión 7.0, tvOS versión 14.0, macOS Catalina versión 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave, iOS versión 14.0 e iPadOS versión 14.0. Reproduciendo un archivo de audio malicioso puede conllevar a una ejecución de código arbitraria"
    }
  ],
  "lastModified": "2026-06-17T03:28:52.290",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "product-security@apple.com"
}