VULNERABILITY INTELLIGENCE

CVE-2021-31611

CVSS score5.7 MEDIUM
EPSS probability0.37%
CISA KEVNot currently listed
Published2021-09-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Weakness classification

  • nvd@nist.gov: CWE-667

Primary references