CVE-2023-28904 Bypass of secure boot process
Physical access allows bypassing secure boot via buffer overflow, enabling arbitrary code execution on the infotainment system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-28904?
CVE-2023-28904 is a medium-severity memory corruption vulnerability in Preh Car Connect GmbH (JOYNEXT GmbH) Volkswagen MIB3 infotainment system MIB3 OI MQB, published on 28 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-120
Which versions are affected by CVE-2023-28904?
How do I fix CVE-2023-28904?
No fix has been published for CVE-2023-28904 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-28904 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-28904 exists.
Sources
Also known as GHSA-gqwg-33mc-9c6j.