CVE-2021-39807

{"containers": {"cna": {"affected": [{"product": "Android", "vendor": "n/a", "versions": [{"status": "affected", "version": "Android-10 Android-11 Android-12 Android-12L"}]}], "descriptions": [{"lang": "en", "value": "In handleNfcStateChanged of SecureNfcEnabler.java, there is a possible way to enable NFC from the Guest account due to a missing permission check. This could lead to local escalation of privilege from the Guest account with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-209446496"}], "problemTypes": [{"descriptions": [{"description": "Elevation of privilege", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-04-12T16:11:48.000Z", "orgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "shortName": "google_android"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://source.android.com/security/bulletin/2022-04-01"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@android.com", "ID": "CVE-2021-39807", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Android", "version": {"version_data": [{"version_value": "Android-10 Android-11 Android-12 Android-12L"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In handleNfcStateChanged of SecureNfcEnabler.java, there is a possible way to enable NFC from the Guest account due to a missing permission check. This could lead to local escalation of privilege from the Guest account with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-209446496"}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Elevation of privilege"}]}]}, "references": {"reference_data": [{"name": "https://source.android.com/security/bulletin/2022-04-01", "refsource": "MISC", "url": "https://source.android.com/security/bulletin/2022-04-01"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:20:33.276Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://source.android.com/security/bulletin/2022-04-01"}]}]}, "cveMetadata": {"assignerOrgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "assignerShortName": "google_android", "cveId": "CVE-2021-39807", "datePublished": "2022-04-12T16:11:48.000Z", "dateReserved": "2021-08-23T00:00:00.000Z", "dateUpdated": "2024-08-04T02:20:33.276Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Android", "vendor": "n/a", "versions": [{"status": "affected", "version": "Android-10 Android-11 Android-12 Android-12L"}]}], "source": "security@android.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "D558D965-FA70-4822-A770-419E73BA9ED3", "vulnerable": true}, {"criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64", "vulnerable": true}, {"criteria": "cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*", "matchCriteriaId": "F8FB8EE9-FC56-4D5E-AE55-A5967634740C", "vulnerable": true}, {"criteria": "cpe:2.3:o:google:android:12.1:*:*:*:*:*:*:*", "matchCriteriaId": "C64C1583-CDE0-4C1F-BDE6-05643C1BDD72", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In handleNfcStateChanged of SecureNfcEnabler.java, there is a possible way to enable NFC from the Guest account due to a missing permission check. This could lead to local escalation of privilege from the Guest account with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-209446496"}, {"lang": "es", "value": "En la funci\u00f3n handleNfcStateChanged del archivo SecureNfcEnabler.java, se presenta la posibilidad de habilitar NFC desde la cuenta de invitado debido a una falta de comprobaci\u00f3n de permisos. Esto podr\u00eda conllevar a una escalada local de privilegios desde la cuenta de invitado sin ser necesarios privilegios de ejecuci\u00f3n adicionales. No es requerida una interacci\u00f3n del usuario para su explotaci\u00f3n. Producto: Android, Versiones: Android-10 Android-11 Android-12 Android-12L, ID de Android: A-209446496"}], "id": "CVE-2021-39807", "lastModified": "2026-06-17T04:04:11.443", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-04-12T17:15:08.583", "references": [{"source": "security@android.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://source.android.com/security/bulletin/2022-04-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://source.android.com/security/bulletin/2022-04-01"}], "sourceIdentifier": "security@android.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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