CVE-2021-34146
Description
The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and restart (crash) of the device by flooding it with LMP_AU_Rand packets after the paging procedure.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:AAttack VectorAdjacent
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
Texas Instruments Inc.
commercial·US
and 1 more affected products View all →
Exploitability
Official Patch Available
References
https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices
cypress.com
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
dl.packetstormsecurity.net
https://www.cybersecurity-help.cz/vdb/SB2021090611
cybersecurity-help.cz
and 1 more references View all →
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2021-34146 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows