Vulnerability in Toyota Display Control Unit
CVE-2020-5551
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Toyota Display Control Unit
- Toyota Motor Corporation Dcu (Display Control Unit) — versions 2017 Model Year
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jvn.jp/en/vu/JVNVU99396686/index.html (Third Party Advisory)
- global.toyota/en/newsroom/corporate/32120629.html (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-5551?
- CVE-2020-5551 is a high-severity vulnerability in Toyota Display Control Unit, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2020-03-30.
- How severe is CVE-2020-5551?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-5551 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.