CVE-2019-16336

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

The Bluetooth Low Energy implementation in Cypress PSoC 4 BLE component 3.61 and earlier processes data channel frames with a payload length larger than the configured link layer maximum RX payload size, which allows attackers (in radio range) to cause a denial of service (crash) 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/Exploit, Third Party Advisory
https://community.cypress.com/thread/48573Vendor Advisory
https://community.cypress.com/thread/53680Vendor Advisory
https://www.youtube.com/watch?v=Iw8sIBLWE_wExploit, Third Party Advisory
https://asset-group.github.io/disclosures/sweyntooth/Exploit, Third Party Advisory
https://community.cypress.com/thread/48573Vendor Advisory
https://community.cypress.com/thread/53680Vendor Advisory
https://www.youtube.com/watch?v=Iw8sIBLWE_wExploit, Third Party Advisory

Timeline

Published: Feb 12, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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