CVE-2021-31610
BRAKTOOTH: Causing Havoc on Bluetooth Link Manager
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
La implementación de Bluetooth Classic en los dispositivos AB32VG1, no maneja apropiadamente la recepción de respuestas LMP continuas no solicitadas, que permite a atacantes en el rango de radio desencadenar una denegación de servicio (reiniciar o bloquear el dispositivo) inundando un dispositivo con datos LMP_AU_rand
This whitepaper discusses BRAKTOOTH, a family of new security vulnerabilities in commercial BT stacks that range from denial of service (DoS) via firmware crashes and deadlocks in commodity hardware to arbitrary code execution (ACE) in certain IoTs.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-04-23 CVE Reserved
- 2021-09-03 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://dl.packetstormsecurity.net/papers/general/braktooth.pdf | Broken Link | |
| https://www.mi.com/global/mi-true-wireless-earbuds-basic-2 | Not Applicable |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.bluetrum.com/product/ab5376t.html | 2021-09-13 | |
| http://www.bluetrum.com/product/bt8896a.html | 2021-09-13 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mi Search vendor "Mi" | Mi True Wireless Earbuds Basic 2 Firmware Search vendor "Mi" for product "Mi True Wireless Earbuds Basic 2 Firmware" | - | - |
Affected
| in | Mi Search vendor "Mi" | Mi True Wireless Earbuds Basic 2 Search vendor "Mi" for product "Mi True Wireless Earbuds Basic 2" | - | - |
Safe
|
| Bluetrum Search vendor "Bluetrum" | Ab5376t Firmware Search vendor "Bluetrum" for product "Ab5376t Firmware" | - | - |
Affected
| in | Bluetrum Search vendor "Bluetrum" | Ab5376t Search vendor "Bluetrum" for product "Ab5376t" | - | - |
Safe
|
| Bluetrum Search vendor "Bluetrum" | Bt8896a Firmware Search vendor "Bluetrum" for product "Bt8896a Firmware" | - | - |
Affected
| in | Bluetrum Search vendor "Bluetrum" | Bt8896a Search vendor "Bluetrum" for product "Bt8896a" | - | - |
Safe
|