How severe is CVE-2023-28907?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Preh Car Connect Gmbh (Joynext Gmbh) Volkswagen Mib3 Infotainment System Oi Mqb

CVE-2023-28907

There is no memory isolation between CPU cores of the MIB3 infotainment. This fact allows an attacker with access to the main operating system to compromise the CPU core responsible for CAN message processing. The vulnerability was originally discovered in Skoda Superb III car with MIB3 infotainment unit OEM part number 3V0035820. The list of affected MIB3 OEM part numbers is provided in the referenced resources.

Published 2025-06-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Preh Car Connect Gmbh (Joynext Gmbh) Volkswagen Mib3 Infotainment System Oi Mqb — versions 0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

i.blackhat.com/EU-24/Presentations/EU-24-Parnishchev-OverTheAirVW.pdf
pcacybersecurity.com/resources/advisory/vulnerabilities-in-vw-mib3-infotainment… (technical-description)
asrg.io/security-advisories/vulnerabilities-in-volkswagen-mib3-infotainment-par… (third-party-advisory)

Frequently asked questions

What is CVE-2023-28907?: CVE-2023-28907 is a medium-severity vulnerability in Preh Car Connect Gmbh (Joynext Gmbh) Volkswagen Mib3 Infotainment System Oi Mqb, classified under Improper Access Control. CVSS score: 6.7/10. Published 2025-06-28.
How severe is CVE-2023-28907?: Medium severity. CVSS v3 base score is 6.7 out of 10.