{"id":"CVE-2021-0474","aliases":["A-177611958","ASB-A-177611958","EUVD-2021-3093","GHSA-8v4m-q3m2-gfw3"],"status":"published","title":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer...","description":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-177611958","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03357,"percentile":0.88801,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-787"],"published":"2021-05-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","exploits":[{"source":"pocgithub","id":"pazhanivel07/system_bt_A10-r33_CVE-2021-0474","title":"pazhanivel07/system_bt_A10-r33_CVE-2021-0474","date":"2022-04-20","url":"https://github.com/pazhanivel07/system_bt_A10-r33_CVE-2021-0474"},{"source":"pocgithub","id":"pazhanivel07/system_bt_A10_r33_CVE-2021-0474","title":"pazhanivel07/system_bt_A10_r33_CVE-2021-0474","date":"2022-04-21","url":"https://github.com/pazhanivel07/system_bt_A10_r33_CVE-2021-0474"}],"fixes":[{"ecosystem":"Android","package":"platform/system/bt","fixed_in":["8.1:2021-05-01","9:2021-05-01","10:2021-05-01","11:2021-05-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1:0"},{"fixed":"8.1:2021-05-01"}]}],"versions":["8.1"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-05-01"}]}],"versions":["9"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-05-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-05-01"}]}],"versions":["11"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-05-01","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0474"},{"url":"https://github.com/advisories/GHSA-8v4m-q3m2-gfw3"},{"url":"https://android.googlesource.com/platform/system/bt/+/2cafe07d66bfc5cc75d7d2bf61415fc33d711132","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-0474","description":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-177611958","status":"published","published":"2021-06-11T16:42:56Z","modified":"2024-08-03T15:40:01.16Z","updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-3093","description":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-177611958","status":"published","published":"2021-06-11T16:42:56Z","modified":"2024-08-03T15:40:01Z","updated_at":"2026-11-03T03:25:16.987587Z"}],"ghsa":[{"id":"GHSA-8v4m-q3m2-gfw3","title":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer...","description":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-177611958","status":"published","published":"2022-05-24T19:05:00Z","modified":"2023-01-29T05:07:58Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:12.058225Z"}],"nvd":[{"id":"CVE-2021-0474","description":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-177611958","status":"published","published":"2021-06-11T17:15:09.673Z","modified":"2026-06-17T03:30:10.337Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:54.439974Z"}],"osv":[{"id":"ASB-A-177611958","description":"In avrc_msg_cback of avrc_api.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-05-01T00:00:00Z","modified":"2026-11-09T16:40:10.884737887Z","updated_at":"2026-11-09T17:04:22.742827Z"}]}}