CVE-2021-31787
MEDIUMActions ATS2815/ATS2819/ATS2819S/ATS2819T Firmware - Denial of Service via LMP Features Response Flood
Title source: llmDescription
The Bluetooth Classic implementation on Actions ATS2815 chipsets does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown of a device by flooding the target device with LMP_features_res packets.
References (3)
Core 3
Core References
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
Broken Link x_refsource_misc
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
Scores
CVSS v3
6.5
EPSS
0.0049
EPSS Percentile
38.5%
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-770
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
Nov 30, 2021
Tracked Since
Feb 18, 2026