{"id":"CVE-2021-31610","aliases":["EUVD-2021-18499","GHSA-r5mj-p5rf-5r3g"],"status":"published","title":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of...","description":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00564,"percentile":0.47344,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-09-07T06:14:08Z","modified":"2026-06-17T03:52:04Z","products":[{"vendor":"bluetrum","product":"ab5376t_firmware"},{"vendor":"bluetrum","product":"bt8896a_firmware"},{"vendor":"mi","product":"mi_true_wireless_earbuds_basic_2_firmware"}],"references":[{"url":"http://www.bluetrum.com/product/bt8896a.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"http://www.bluetrum.com/product/ab5376t.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://www.mi.com/global/mi-true-wireless-earbuds-basic-2/","tags":["x_refsource_MISC","x_transferred","Not Applicable"]},{"url":"https://dl.packetstormsecurity.net/papers/general/braktooth.pdf","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31610"},{"url":"https://github.com/advisories/GHSA-r5mj-p5rf-5r3g"}],"sources":{"cve":[{"id":"CVE-2021-31610","description":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.","status":"published","published":"2021-09-07T06:14:08Z","modified":"2024-08-03T23:03:33.652Z","updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-18499","description":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.","status":"published","published":"2021-09-07T06:14:08Z","modified":"2024-08-03T23:03:33Z","updated_at":"2026-11-03T03:24:38.423371Z"}],"ghsa":[{"id":"GHSA-r5mj-p5rf-5r3g","title":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of...","description":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.","status":"published","published":"2022-05-24T19:13:16Z","modified":"2023-01-30T05:01:56Z","updated_at":"2026-11-02T14:46:31.204916Z"}],"nvd":[{"id":"CVE-2021-31610","description":"The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.","status":"published","published":"2021-09-07T07:15:06.99Z","modified":"2026-06-17T03:52:04.603Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:58.05696Z"}]}}