CVE-2019-17061

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

The Bluetooth Low Energy (BLE) stack implementation on Cypress PSoC 4 through 3.62 devices does not properly restrict the BLE Link Layer header and executes certain memory contents upon receiving a packet with a Link Layer ID (LLID) equal to zero. This allows attackers within radio range to cause deadlocks, cause anomalous behavior in the BLE state machine, or trigger a buffer overflow via a crafted BLE Link Layer frame.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
https://community.cypress.com/thread/53680Vendor Advisory
https://www.cypress.com/products/ble-bluetoothVendor Advisory
https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
https://community.cypress.com/thread/53680Vendor Advisory
https://www.cypress.com/products/ble-bluetoothVendor Advisory

Timeline

Published: Feb 10, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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