{"id":"CVE-2021-0963","aliases":["A-199754277","ASB-A-199754277","EUVD-2021-3582","GHSA-8gf6-jmpj-r5h7"],"status":"published","title":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in...","description":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00204,"percentile":0.10475,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-1021"],"published":"2021-12-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","exploits":[{"source":"pocgithub","id":"Trinadh465/packages_apps_KeyChain_AOSP10_r33_CVE-2021-0963","title":"Trinadh465/packages_apps_KeyChain_AOSP10_r33_CVE-2021-0963","date":"2022-04-29","url":"https://github.com/Trinadh465/packages_apps_KeyChain_AOSP10_r33_CVE-2021-0963"}],"fixes":[{"ecosystem":"Android","package":"platform/packages/apps/KeyChain","fixed_in":["9:2021-12-01","10:2021-12-01","11:2021-12-01","12:2021-12-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/packages/apps/KeyChain","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-12-01"}]}],"versions":["9"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/apps/KeyChain","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-12-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/apps/KeyChain","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-12-01"}]}],"versions":["11"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/apps/KeyChain","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2021-12-01"}]}],"versions":["12"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-12-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0963"},{"url":"https://github.com/advisories/GHSA-8gf6-jmpj-r5h7"}],"sources":{"cve":[{"id":"CVE-2021-0963","description":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277","status":"published","published":"2021-12-15T18:05:49Z","modified":"2024-08-03T15:55:17.973Z","updated_at":"2026-11-02T14:33:10.555814Z"}],"euvd":[{"id":"EUVD-2021-3582","description":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277","status":"published","published":"2021-12-15T18:05:49Z","modified":"2024-08-03T15:55:17Z","updated_at":"2026-11-03T03:25:16.085901Z"}],"ghsa":[{"id":"GHSA-8gf6-jmpj-r5h7","title":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in...","description":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277","status":"published","published":"2021-12-16T00:01:21Z","modified":"2023-02-01T05:07:09Z","cwes":["CWE-1021"],"updated_at":"2026-11-02T14:50:29.480738Z"}],"nvd":[{"id":"CVE-2021-0963","description":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277","status":"published","published":"2021-12-15T19:15:11.873Z","modified":"2026-06-17T03:30:43.46Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-1021"],"updated_at":"2026-11-02T14:07:02.189991Z"}],"osv":[{"id":"ASB-A-199754277","description":"In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.","status":"published","published":"2021-12-01T00:00:00Z","modified":"2026-11-10T16:45:41.426023455Z","updated_at":"2026-11-10T17:35:05.376141Z"}]}}