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CVE-2021-0434

Status: ModifiedHigh (7.3)—

In onReceive of BluetoothPermissionRequest.java, there is a possible phishing attack allowing a malicious Bluetooth device to acquire permissions based on insufficient information presented to the user in the consent dialog. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-9Android ID: A-167403112

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-2021-0434",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Android",
          "versions": [
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              "status": "affected",
              "version": "Android-10 Android-11 Android-9"
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  "published": "2021-12-15T19:15:10.323",
  "references": [
    {
      "url": "https://source.android.com/security/bulletin/2021-11-01",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@android.com"
    },
    {
      "url": "https://source.android.com/security/bulletin/2021-11-01",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In onReceive of BluetoothPermissionRequest.java, there is a possible phishing attack allowing a malicious Bluetooth device to acquire permissions based on insufficient information presented to the user in the consent dialog. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-9Android ID: A-167403112"
    },
    {
      "lang": "es",
      "value": "En la función onReceive del archivo BluetoothPermissionRequest.java, se presenta un posible ataque de suplantación de identidad que permite a un dispositivo Bluetooth malicioso adquirir permisos basándose en información no suficiente presentada al usuario en el diálogo de consentimiento. Esto podría conllevar a una escalada local de privilegios sin ser necesarios privilegios de ejecución adicionales. Es requerida una interacción del usuario para su explotación. Producto: Android. Versiones: Android-10 Android-11 Android-9. ID de Android: A-167403112"
    }
  ],
  "lastModified": "2026-06-17T03:29:58.920",
  "configurations": [
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  "sourceIdentifier": "security@android.com"
}