CVE-2021-31786
MEDIUMActions ATS2815 and ATS2819 Firmware - Deadlock via Forged BDAddress Connection
Title source: llmDescription
The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does not properly handle a connection attempt from a host with the same BDAddress as the current connected BT host, allowing attackers to trigger a disconnection and deadlock of the device by connecting with a forged BDAddress that matches the original connected host.
References (3)
Core 3
Core References
Broken Link, Vendor Advisory x_refsource_misc
https://www.actions-semi.com/index.php?id=3581&siteId=4
Third Party Advisory x_refsource_misc
https://launchstudio.bluetooth.com/ListingDetails/76427
Technical Description, Third Party Advisory x_refsource_misc
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
Scores
CVSS v3
6.5
EPSS
0.0043
EPSS Percentile
34.1%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-667
Status
published
Products (5)
actions-semi/ats2815_firmware
actions-semi/ats2819_firmware
actions-semi/ats2819p_firmware
actions-semi/ats2819s_firmware
actions-semi/ats2819t_firmware
Published
Sep 07, 2021
Tracked Since
Feb 18, 2026