CVE-2023-28904

Bypass of secure boot process

5.2 Medium

A logic flaw leading to a RAM buffer overflow in the bootloader component of the MIB3 infotainment unit allows an attacker with physical access to the MIB3 ECU to bypass firmware signature verification and run arbitrary code in the infotainment system at boot process.

Attack profile

How easy it is to exploit

Attack vector: Physical
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: High
Availability: None

Exploit likelihood

0.32%Up 0.3 points since Jun 29, 2025

What each source reports

CVE List Score used 5.2

Bypass of secure boot process

Record: CVE-2023-28904
CVSS 3.1: 5.2 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness: CWE-120
Updated: 2026-11-02

EUVDEUVD-2023-32524 5.2

Record: EUVD-2023-32524
CVSS 3.1: 5.2 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-gqwg-33mc-9c6j 5.2

A logic flaw leading to a RAM buffer overflow in the bootloader component of the MIB3...

Record: GHSA-gqwg-33mc-9c6j
CVSS 3.1: 5.2 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness: CWE-120
Updated: 2026-11-02

NVD 5.2

Record: CVE-2023-28904
CVSS 3.1: 5.2 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness: CWE-120
Updated: 2026-11-02

Affected products

preh car connect gmbh (joynext gmbh) volkswagen mib3 infotainment system mib3 oi mqb

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-28904 is a medium vulnerability (CVSS 5.2) in Preh Car Connect Gmbh (joynext Gmbh) Volkswagen Mib3 Infotainment System Mib3 Oi Mqb, published June 28, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.