CVE-2023-29113 A lack of access control in custom IPC mechanism
Attackers with local access can bypass OS-level access controls via an insecure IPC mechanism in Volkswagen MIB3 infotainment units.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-29113?
CVE-2023-29113 is a medium-severity missing authorization 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
The MIB3 infotainment unit used in Skoda and Volkswagen vehicles does not incorporate any privilege separation for the proprietary inter-process communication mechanism, leaving attackers with presence in the system an ability to undermine access control restrictions implemented at the operating system level. 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.
Weakness: CWE-284
Which versions are affected by CVE-2023-29113?
How do I fix CVE-2023-29113?
No fix has been published for CVE-2023-29113 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-29113 being exploited?
There is no known exploitation of CVE-2023-29113 in the wild and no public exploit code.
Sources
Also known as GHSA-938m-532f-x65h.