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CVE-2022-20521

Status: ModifiedMedium (5)—

In sdpu_find_most_specific_service_uuid of sdp_utils.cc, there is a possible way to crash Bluetooth due to a missing null check. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-227203684

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-2022-20521",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-20521",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-18T15:50:35.876806Z"
        }
      }
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    "cvssMetricV31": [
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          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "exploitabilityScore": 1.3
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        "cvssData": {
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          "integrityImpact": "NONE",
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  "published": "2022-12-16T16:15:17.363",
  "references": [
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      "url": "https://source.android.com/security/bulletin/pixel/2022-12-01",
      "tags": [
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      "source": "security@android.com"
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
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    },
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    {
      "lang": "en",
      "value": "In sdpu_find_most_specific_service_uuid of sdp_utils.cc, there is a possible way to crash Bluetooth due to a missing null check. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-227203684"
    },
    {
      "lang": "es",
      "value": "En sdpu_find_most_specific_service_uuid de sdp_utils.cc, existe una forma posible de bloquear Bluetooth debido a que falta una verificación nula. Esto podría provocar una Denegación de Servicio (DoS) local sin necesidad de privilegios de ejecución adicionales. Se necesita la interacción del usuario para la explotación. Producto: Android Versiones: Android-13 ID de Android: A-227203684"
    }
  ],
  "lastModified": "2026-06-17T04:24:28.780",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*",
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}