{"id":"CVE-2021-28155","aliases":["EUVD-2021-14853","GHSA-hw39-2f47-g9hg"],"status":"published","title":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the...","description":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown a device by flooding the target device with LMP Feature Response 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":"2026-11-10","score":0.00455,"percentile":0.39836,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-09-07T05:57:18Z","modified":"2026-06-17T03:45:53Z","products":[{"vendor":"jbl","product":"tune500bt_firmware"}],"references":[{"url":"https://www.jbl.com.sg/over-ear-headphones/JBL+TUNE500BT.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://dl.packetstormsecurity.net/papers/general/braktooth.pdf","tags":["x_refsource_MISC","x_transferred","Technical Description","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28155"},{"url":"https://github.com/advisories/GHSA-hw39-2f47-g9hg"}],"sources":{"cve":[{"id":"CVE-2021-28155","description":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown a device by flooding the target device with LMP Feature Response data.","status":"published","published":"2021-09-07T05:57:18Z","modified":"2024-08-03T21:40:12.022Z","updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-14853","description":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown a device by flooding the target device with LMP Feature Response data.","status":"published","published":"2021-09-07T05:57:18Z","modified":"2024-08-03T21:40:12Z","updated_at":"2026-11-03T03:24:47.350261Z"}],"ghsa":[{"id":"GHSA-hw39-2f47-g9hg","title":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the...","description":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown a device by flooding the target device with LMP Feature Response data.","status":"published","published":"2022-05-24T19:13:17Z","modified":"2023-01-30T05:01:57Z","updated_at":"2026-11-02T14:46:31.662536Z"}],"nvd":[{"id":"CVE-2021-28155","description":"The Bluetooth Classic implementation on JBL TUNE500BT devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown a device by flooding the target device with LMP Feature Response data.","status":"published","published":"2021-09-07T06:15:07.467Z","modified":"2026-06-17T03:45:53.7Z","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"}]}}