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MEDIUM · 5.7

CVE-2021-31611

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 attacke...

Vulnerability 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.

CVSS Score

5.7

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
Zh-JieliAc6901 Firmware-
Zh-JieliAc6901-
Zh-JieliAc6925 Firmware-
Zh-JieliAc6925-
Zh-JieliAc6926 Firmware-
Zh-JieliAc6926-
Zh-JieliAc6928 Firmware-
Zh-JieliAc6928-
Zh-JieliAc6921 Firmware-
Zh-JieliAc6921-

Related Weaknesses (CWE)

CWE-667

References

FAQ

What is CVE-2021-31611?

CVE-2021-31611 is a vulnerability with a CVSS score of 5.7 (MEDIUM). 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 attacke...

How severe is CVE-2021-31611?

CVE-2021-31611 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-31611?

Check the references section above for vendor advisories and patch information. Affected products include: Zh-Jieli Ac6901 Firmware, Zh-Jieli Ac6901, Zh-Jieli Ac6925 Firmware, Zh-Jieli Ac6925, Zh-Jieli Ac6926 Firmware.