{"id":"CVE-2023-21083","aliases":["A-252762941","ASB-A-252762941","EUVD-2023-25251","GHSA-85jf-pww6-rrgf"],"status":"published","title":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio...","description":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941","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":0.00092,"percentile":0.00479,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2023-04-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":"platform/packages/services/Telecomm","fixed_in":["13-next:2023-04-01","11:2023-04-01","12:2023-04-01","12L:2023-04-01","13:2023-04-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/packages/services/Telecomm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13-next:0"},{"fixed":"13-next:2023-04-01"}]}],"versions":["13-next"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/services/Telecomm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2023-04-01"}]}],"versions":["11"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/services/Telecomm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2023-04-01"}]}],"versions":["12"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/services/Telecomm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12L:0"},{"fixed":"12L:2023-04-01"}]}],"versions":["12L"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/services/Telecomm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2023-04-01"}]}],"versions":["13"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2023-04-01","tags":["x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21083"},{"url":"https://github.com/advisories/GHSA-85jf-pww6-rrgf"},{"url":"https://android.googlesource.com/platform/packages/services/Telecomm/+/8b32e15214910a310e5f7391e739ac1043af3bf9","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2023-21083","description":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941","status":"published","published":"2023-04-19T00:00:00Z","modified":"2025-02-05T19:32:13.331Z","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":"adp"}],"updated_at":"2026-11-02T14:35:20.368244Z"}],"euvd":[{"id":"EUVD-2023-25251","description":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941","status":"published","published":"2023-04-19T00:00:00Z","modified":"2025-02-05T19:32:13Z","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"}],"updated_at":"2026-11-03T00:04:04.235223Z"}],"ghsa":[{"id":"GHSA-85jf-pww6-rrgf","title":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio...","description":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941","status":"published","published":"2023-04-19T21:30:27Z","modified":"2024-04-04T03:35:53Z","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"}],"updated_at":"2026-11-02T14:56:16.439649Z"}],"nvd":[{"id":"CVE-2023-21083","description":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941","status":"published","published":"2023-04-19T20:15:11.303Z","modified":"2026-06-17T05:31:46.963Z","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":"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":"secondary"}],"updated_at":"2026-11-02T14:07:56.683259Z"}],"osv":[{"id":"ASB-A-252762941","description":"In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2023-04-01T00:00:00Z","modified":"2026-11-05T16:32:28.703711716Z","updated_at":"2026-11-05T17:55:15.258551Z"}]}}