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CVE-2021-39667

Status: ModifiedMedium (6.5)—

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093

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 (1)

Google — Android

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-39667",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "affected": [
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      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
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  "published": "2022-03-16T15:15:10.333",
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      "tags": [
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      "source": "security@android.com"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
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  ],
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      "lang": "en",
      "value": "In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093"
    },
    {
      "lang": "es",
      "value": "En la función ih264d_parse_decode_slice del archivo ih264d_parse_slice.c, se presenta una posible escritura fuera de límites debido a un desbordamiento del búfer de la pila. Esto podría conllevar a una divulgación de información remota sin ser necesarios privilegios de ejecución adicionales. Es requerida una interacción del usuario para su explotación. Producto: Android, Versiones: Android-10 Android-11 Android-12, ID de Android: A-205702093"
    }
  ],
  "lastModified": "2026-06-17T04:03:58.267",
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