What is CVE-2018-9311?

CVE-2018-9311 is a critical-severity vulnerability in Bmw Telematics Control Unit, classified under Protection Mechanism Failure. CVSS score: 9.8/10. Published 2018-05-31.

How severe is CVE-2018-9311?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Bmw Telematics Control Unit

CVE-2018-9311

The Telematics Control Unit (aka Telematic Communication Box or TCB), when present on BMW vehicles produced in 2012 through 2018, allows a remote attack via a cellular network.

Published 2018-05-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.040 (90.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

keenlab.tencent.com/en/Experimental_Security_Assessment_of_BMW_Cars_by_KeenLab… (Exploit, Third Party Advisory)
www.theregister.co.uk/2018/05/23/bmw_security_bugs/ (Third Party Advisory)
www.securityfocus.com/bid/104258 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-9311?: CVE-2018-9311 is a critical-severity vulnerability in Bmw Telematics Control Unit, classified under Protection Mechanism Failure. CVSS score: 9.8/10. Published 2018-05-31.
How severe is CVE-2018-9311?: Critical severity. CVSS v3 base score is 9.8 out of 10.