CVE-2021-28155: Jbl TUNE500BT Firmware

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Jbl TUNE500BT Firmware: affected versions not specified

Published 2021-09-07. Last modified 2026-06-17.