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CVE-2021-39701

Status: ModifiedHigh (7.8)—

In serviceConnection of ControlsProviderLifecycleManager.kt, there is a possible way to keep service running in foreground without notification or permission due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-212286849

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-2021-39701",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "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"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Android",
          "versions": [
            {
              "status": "affected",
              "version": "Android-11 Android-12"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-03-16T15:15:10.800",
  "references": [
    {
      "url": "https://source.android.com/security/bulletin/2022-03-01",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@android.com"
    },
    {
      "url": "https://source.android.com/security/bulletin/2022-03-01",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In serviceConnection of ControlsProviderLifecycleManager.kt, there is a possible way to keep service running in foreground without notification or permission due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-212286849"
    },
    {
      "lang": "es",
      "value": "En la función serviceConnection del archivo ControlsProviderLifecycleManager.kt, se presenta una posible forma de mantener el servicio en ejecución en primer plano sin notificación o permiso debido a una comprobación de entrada inapropiada. 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-11 Android-12, ID de Android: A-212286849"
    }
  ],
  "lastModified": "2026-06-17T04:04:01.393",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*",
              "vulnerable": true,
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              "vulnerable": true,
              "matchCriteriaId": "F8FB8EE9-FC56-4D5E-AE55-A5967634740C"
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          "operator": "OR"
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  "sourceIdentifier": "security@android.com"
}