Cyber Resilience

CVE-2021-31786

Medium

Published: 07 September 2021

Published
07 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0010 27.9th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-31786 is a medium-severity Improper Locking (CWE-667) vulnerability in Actions-Semi Ats2819P Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 27.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

the device by connecting with a forged BDAddress that matches the original connected host.

CWE(s)
CWE-667

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

actions-semi
ats2819p firmware
all versions
actions-semi
ats2815 firmware
all versions
actions-semi
ats2819 firmware
all versions
actions-semi
ats2819s firmware
all versions
actions-semi
ats2819t firmware
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References