{"id":"CVE-2021-0307","aliases":["A-155648771","ASB-A-155648771","EUVD-2021-2926","GHSA-8xfg-5ch9-qcf9"],"status":"published","title":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic...","description":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-155648771.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00175,"percentile":0.07055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-01-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":"platform/cts","fixed_in":["10:2021-01-01","11:2021-01-01"],"sources":["osv"]},{"ecosystem":"Android","package":"platform/frameworks/base","fixed_in":["10:2021-01-01","11:2021-01-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/cts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-01-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-01-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/cts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-01-01"}]}],"versions":["11"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-01-01"}]}],"versions":["11"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-01-01","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0307"},{"url":"https://github.com/advisories/GHSA-8xfg-5ch9-qcf9"},{"url":"https://android.googlesource.com/platform/cts/+/a8a90255d43845e307b6d133c710b802dbece622","tags":["fix"]},{"url":"https://android.googlesource.com/platform/frameworks/base/+/a9f825922e1870575aeab11a2035903c217233c9","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-0307","description":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-155648771.","status":"published","published":"2021-01-11T21:46:52Z","modified":"2024-08-03T15:32:10.645Z","updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-2926","description":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-155648771.","status":"published","published":"2021-01-11T21:46:52Z","modified":"2024-08-03T15:32:10Z","updated_at":"2026-11-03T03:25:17.997367Z"}],"ghsa":[{"id":"GHSA-8xfg-5ch9-qcf9","title":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic...","description":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-155648771.","status":"published","published":"2022-05-24T17:38:41Z","modified":"2023-01-29T05:06:03Z","updated_at":"2026-11-02T14:45:56.147373Z"}],"nvd":[{"id":"CVE-2021-0307","description":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-155648771.","status":"published","published":"2021-01-11T22:15:13.127Z","modified":"2026-06-17T03:29:45.897Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:49.284888Z"}],"osv":[{"id":"ASB-A-155648771","description":"In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-01-01T00:00:00Z","modified":"2026-11-05T16:32:28.703711716Z","updated_at":"2026-11-05T17:55:14.18208Z"}]}}