{"id":"CVE-2021-0391","aliases":["A-172841550","ASB-A-172841550","EUVD-2021-3010","GHSA-6f65-gqxf-jwmr"],"status":"published","title":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the...","description":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the existence of an account, without permissions, due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-172841550","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00657,"percentile":0.51796,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-1021"],"published":"2021-03-01T00:00:00Z","modified":"2026-11-04T16:48:29Z","exploits":[{"source":"pocgithub","id":"nanopathi/framework_base_AOSP10_r33_CVE-2021-0391","title":"nanopathi/framework_base_AOSP10_r33_CVE-2021-0391","date":"2022-04-11","url":"https://github.com/nanopathi/framework_base_AOSP10_r33_CVE-2021-0391"}],"fixes":[{"ecosystem":"Android","package":"platform/frameworks/base","fixed_in":["8.1:2021-03-01","9:2021-03-01","10:2021-03-01","11:2021-03-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1:0"},{"fixed":"8.1:2021-03-01"}]}],"versions":["8.1"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-03-01"}]}],"versions":["9"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-03-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-03-01"}]}],"versions":["11"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-03-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0391"},{"url":"https://github.com/advisories/GHSA-6f65-gqxf-jwmr"},{"url":"https://android.googlesource.com/platform/frameworks/base/+/169f089a26b322b297e8b224e3a7274bc18a986a","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-0391","description":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the existence of an account, without permissions, due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-172841550","status":"published","published":"2021-03-10T15:39:34Z","modified":"2024-08-03T15:40:01.274Z","updated_at":"2026-11-02T14:33:10.555814Z"}],"euvd":[{"id":"EUVD-2021-3010","description":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the existence of an account, without permissions, due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-172841550","status":"published","published":"2021-03-10T15:39:34Z","modified":"2024-08-03T15:40:01Z","updated_at":"2026-11-03T03:25:17.553486Z"}],"ghsa":[{"id":"GHSA-6f65-gqxf-jwmr","title":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the...","description":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the existence of an account, without permissions, due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-172841550","status":"published","published":"2022-05-24T17:44:09Z","modified":"2023-08-08T15:31:17Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:54:44.111289Z"}],"nvd":[{"id":"CVE-2021-0391","description":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the existence of an account, without permissions, due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-172841550","status":"published","published":"2021-03-10T16:15:15.923Z","modified":"2026-06-17T03:29:54.34Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-1021"],"updated_at":"2026-11-02T14:06:50.399901Z"}],"osv":[{"id":"ASB-A-172841550","description":"In onCreate() of ChooseTypeAndAccountActivity.java, there is a possible way to learn the existence of an account, without permissions, due to a tapjacking/overlay attack. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.","status":"published","published":"2021-03-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:04:13.670671Z"}]}}