How severe is CVE-2019-19195?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2019-19195 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Microchip Atmsamb11 Blusdk Smart

CVE-2019-19195

The Bluetooth Low Energy implementation on Microchip Technology BluSDK Smart through 6.2 for ATSAMB11 devices does not properly restrict link-layer data length on reception, allowing attackers in radio range to cause a denial of service (crash) via a crafted packet.

Published 2020-02-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Public proof-of-concept exploits

References

www.microchip.com/wwwproducts/en/ATSAMB11 (Product, Vendor Advisory)
asset-group.github.io/disclosures/sweyntooth/ (Third Party Advisory)

Frequently asked questions

What is CVE-2019-19195?: CVE-2019-19195 is a medium-severity vulnerability in Microchip Atmsamb11 Blusdk Smart. CVSS score: 6.5/10. Published 2020-02-10.
How severe is CVE-2019-19195?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2019-19195 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.