How severe is CVE-2018-9311?

CVE-2018-9311 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-9311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9311?

CVE-2018-9311 affects Bmw Telematics Control Unit Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-9311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-9311 published?

CVE-2018-9311 was published on 2018-05-31 and last updated on 2026-06-17.

CVE-2018-9311

CVE-2018-9311 is a critical-severity vulnerability in Bmw Telematics Control Unit Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-693.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-693
Affected product: Bmw Telematics Control Unit Firmware
Published: 2018-05-31
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-9311?: CVE-2018-9311 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-9311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9311?: CVE-2018-9311 affects Bmw Telematics Control Unit Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-9311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-9311 published?: CVE-2018-9311 was published on 2018-05-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:bmw:telematics_control_unit_firmware:-:*:*:*:*:*:*:*

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