CVSS 3.1
6.5 mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-31785
Medium (6.5) in actions-semi. EPSS 0.4% chance of exploitation in the next 30 days.
The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets does not properly handle the reception of multiple LMP_host_connection_req packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device via crafted LMP packets. Manual user intervention is required to restart the device and restore Bluetooth communication.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWE
- CWE-667
- Published
- Modified
- Record from
- the NVD, synced
Affected
- actions-semi:ats2815_firmware
- actions-semi:ats2819_firmware
- actions-semi:ats2819p_firmware
- actions-semi:ats2819s_firmware
- actions-semi:ats2819t_firmware