Medium severity6.5NVD Advisory· Published Sep 7, 2021· Updated Jun 17, 2026
CVE-2021-31786
CVE-2021-31786
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7- Actions/ATS2815 and ATS2819 devicesdescription
- cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- dl.packetstormsecurity.net/papers/general/braktooth.pdfnvdTechnical DescriptionThird Party Advisory
- launchstudio.bluetooth.com/ListingDetails/76427nvdThird Party Advisory
- www.actions-semi.com/index.phpnvdBroken LinkVendor Advisory
News mentions
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