What is the severity of CVE-2021-34146?

The severity of CVE-2021-34146 is medium with a severity score of 6.5.

What is the affected software of CVE-2021-34146?

The affected software of CVE-2021-34146 includes Cypress Cyw920735q60evb-01 Firmware and Cypress Cyw20735b1 Firmware.

How does CVE-2021-34146 impact the Cypress CYW920735Q60EVB device?

CVE-2021-34146 allows attackers in radio range to trigger a denial of service and restart (crash) of the Cypress CYW920735Q60EVB device by flooding it with LMP_AU_Rand packets.

Is Cypress Cyw20735b1 vulnerable to CVE-2021-34146?

No, Cypress Cyw20735b1 is not vulnerable to CVE-2021-34146.

Where can I find more information about CVE-2021-34146?

You can find more information about CVE-2021-34146 in the following references: [link1](https://dl.packetstormsecurity.net/papers/general/braktooth.pdf) and [link2](https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices).

Vulnerability/
CVE-2021-34146

medium

6.5

7/9/2021

4/8/2024

CVE-2021-34146

First published: Tue Sep 07 2021(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Cypress Cyw920735q60evb-01 Firmware
Cypress Cyw920735q60evb-01
Cypress Cyw20735b1 Firmware
Cypress Cyw20735b1

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-34146?
The severity of CVE-2021-34146 is medium with a severity score of 6.5.
What is the affected software of CVE-2021-34146?
The affected software of CVE-2021-34146 includes Cypress Cyw920735q60evb-01 Firmware and Cypress Cyw20735b1 Firmware.
How does CVE-2021-34146 impact the Cypress CYW920735Q60EVB device?
CVE-2021-34146 allows attackers in radio range to trigger a denial of service and restart (crash) of the Cypress CYW920735Q60EVB device by flooding it with LMP_AU_Rand packets.
Is Cypress Cyw20735b1 vulnerable to CVE-2021-34146?
No, Cypress Cyw20735b1 is not vulnerable to CVE-2021-34146.
Where can I find more information about CVE-2021-34146?
You can find more information about CVE-2021-34146 in the following references: [link1](https://dl.packetstormsecurity.net/papers/general/braktooth.pdf) and [link2](https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices).

collector/nvd-index
agent/references
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/severity
agent/author
agent/last-modified-date
agent/tags
agent/event
agent/description
agent/first-publish-date
agent/source
vendor/cypress
canonical/cypress cyw920735q60evb-01 firmware
canonical/cypress cyw920735q60evb-01
canonical/cypress cyw20735b1 firmware
canonical/cypress cyw20735b1

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.