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.
Published 2021-09-07 07:15:07
Updated 2021-09-14 14:56:38
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2021-34146

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-34146

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.1
MEDIUM AV:A/AC:L/Au:N/C:N/I:N/A:C
6.5
6.9
NIST
6.5
MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.8
3.6
NIST

Products affected by CVE-2021-34146

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