{"id":"CVE-2020-0471","aliases":["A-169327567","ASB-A-169327567","EUVD-2020-1970","GHSA-46qp-3938-63jv"],"status":"published","title":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets...","description":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-169327567.","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":"2026-11-10","score":0.01659,"percentile":0.76845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-20","CWE-269"],"published":"2021-01-01T00:00:00Z","modified":"2026-11-04T16:48:29Z","exploits":[{"source":"pocgithub","id":"nanopathi/system_bt_AOSP10_r33_CVE-2020-0471","title":"nanopathi/system_bt_AOSP10_r33_CVE-2020-0471","date":"2022-04-04","url":"https://github.com/nanopathi/system_bt_AOSP10_r33_CVE-2020-0471"}],"fixes":[{"ecosystem":"Android","package":"platform/system/bt","fixed_in":["8.0:2021-01-01","8.1:2021-01-01","9:2021-01-01","10:2021-01-01","11:2021-01-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0:0"},{"fixed":"8.0:2021-01-01"}]}],"versions":["8.0"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1:0"},{"fixed":"8.1:2021-01-01"}]}],"versions":["8.1"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-01-01"}]}],"versions":["9"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-01-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","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","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0471"},{"url":"https://github.com/advisories/GHSA-46qp-3938-63jv"},{"url":"https://android.googlesource.com/platform/system/bt/+/ca6b0a211eb39ba85eed60ea740c85d1122fc6bc","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2020-0471","description":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-169327567.","status":"published","published":"2021-01-11T21:47:56Z","modified":"2024-08-04T06:02:51.695Z","updated_at":"2026-11-02T14:35:59.434367Z"}],"euvd":[{"id":"EUVD-2020-1970","description":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-169327567.","status":"published","published":"2021-01-11T21:47:56Z","modified":"2024-08-04T06:02:51Z","updated_at":"2026-11-03T03:08:20.23328Z"}],"ghsa":[{"id":"GHSA-46qp-3938-63jv","title":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets...","description":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-169327567.","status":"published","published":"2022-05-24T17:38:29Z","modified":"2023-01-29T05:04:59Z","cwes":["CWE-269"],"updated_at":"2026-11-02T14:45:41.213171Z"}],"nvd":[{"id":"CVE-2020-0471","description":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.0, Android-8.1, Android-9, Android-10, Android-11; Android ID: A-169327567.","status":"published","published":"2021-01-11T22:15:12.813Z","modified":"2026-06-17T02:45:53.583Z","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":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:06:28.892872Z"}],"osv":[{"id":"ASB-A-169327567","description":"In reassemble_and_dispatch of packet_fragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-01-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:35:04.393608Z"}]}}