Medium severity · published Sep 7, 2021
CVE-2021-31610
The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to…
6.5
CVSS
0.6%
EPSS
No
On KEV
Description
The Bluetooth Classic implementation on AB32VG1 devices does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (either restart or deadlock the device) by flooding a device with LMP_AU_rand data.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ab5376t Firmware · Bluetrum
All versions, or not specified · source: NVD
BF
Bt8896a Firmware · Bluetrum
All versions, or not specified · source: NVD
MT
MI True Wireless Earbuds Basic 2 Firmware · MI
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31610
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31610
Product
http://www.bluetrum.com/product/ab5376t.html
Product
http://www.bluetrum.com/product/bt8896a.html
Broken Link
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
Not Applicable
https://www.mi.com/global/mi-true-wireless-earbuds-basic-2/