{"id":"CVE-2023-20931","aliases":["A-242535997","ASB-A-242535997","EUVD-2023-25099","GHSA-mwjj-vghx-7m99"],"status":"published","title":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a...","description":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-242535997","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":"2026-11-12","score":0.00097,"percentile":0.00708,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2023-03-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":"platform/packages/modules/Bluetooth","fixed_in":["13-next:2023-03-01","13:2023-03-01"],"sources":["osv"]},{"ecosystem":"Android","package":"platform/system/bt","fixed_in":["11:2023-03-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/packages/modules/Bluetooth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13-next:0"},{"fixed":"13-next:2023-03-01"}]}],"versions":["13-next"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2023-03-01"}]}],"versions":["11"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/modules/Bluetooth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2023-03-01"}]}],"versions":["13"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2023-03-01","tags":["x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20931"},{"url":"https://github.com/advisories/GHSA-mwjj-vghx-7m99"},{"url":"https://android.googlesource.com/platform/packages/modules/Bluetooth/+/789d4bc617da23dc86d288c53c80a242d3a6850f","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2023-20931","description":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-242535997","status":"published","published":"2023-03-24T00:00:00Z","modified":"2025-02-28T20:36:16.108Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:13.368958Z"}],"euvd":[{"id":"EUVD-2023-25099","description":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-242535997","status":"published","published":"2023-03-24T00:00:00Z","modified":"2025-02-28T20:36:16Z","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":"2026-11-02T20:53:19.078289Z"}],"ghsa":[{"id":"GHSA-mwjj-vghx-7m99","title":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a...","description":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-242535997","status":"published","published":"2023-03-24T21:30:50Z","modified":"2023-04-06T05:08:38Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:54:27.289188Z"}],"nvd":[{"id":"CVE-2023-20931","description":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-242535997","status":"published","published":"2023-03-24T20:15:09.35Z","modified":"2026-06-17T05:31:13.89Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:50.908252Z"}],"osv":[{"id":"ASB-A-242535997","description":"In avdt_scb_hdl_write_req of avdt_scb_act.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2023-03-01T00:00:00Z","modified":"2026-11-12T17:24:32.213657206Z","updated_at":"2026-11-09T17:04:22.742827Z"}]}}