CVE-2019-16336

medium

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.

References

https://www.youtube.com/watch?v=Iw8sIBLWE_w

https://community.cypress.com/thread/53680

https://community.cypress.com/thread/48573

https://asset-group.github.io/disclosures/sweyntooth/

Details

Source: Mitre, NVD

Published: 2020-02-12

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 3.3

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 6.5

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

Severity: Medium

EPSS

EPSS: 0.00208