CVE-2019-17061

Name: CVE-2019-17061
Creator: NVD / NIST
Published: 2020-02-10T21:51:09.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2019-17061 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

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

6.5/10

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

EPSS Probability

0.88%

54.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Cypress	Psoc 4 Ble	<= 3.62

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
Status: Modified

Frequently Asked Questions

What is CVE-2019-17061?

How severe is CVE-2019-17061?

CVE-2019-17061 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17061?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17061?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST