Incorrect default permissions in TOYOTA MOTOR CORPORATION DCU
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TOYOTA MOTOR CORPORATION | DCU (Display Control Unit) | 2017 Model Year | — | No fix listed | CNA |
- DCU (Display Control Unit) VendorTOYOTA MOTOR CORPORATION Affected 2017 Model Year Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5551
- 2026-10-03 Alias added: GHSA-5c48-qxrh-hrpg
References
Sources
- CVE-2020-5551 · CVE Program
- CVE-2020-5551 · NVD
- FIRST EPSS
- GHSA-5c48-qxrh-hrpg · GitHub Advisory Database · CC BY 4.0
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