CVE-2021-31611

MediumCVSS 5.7/10Last modified Jun 17, 2026

Description

The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication.

Metrics

CVSS 3.1 5.7/10CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

No affected versions have been published.

Timeline

Published: Sep 7, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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