CVE-2023-28911 Arbitrary Channel Disconnection Resulting in Denial of Service
Attackers can cause denial of service on connected clients via Bluetooth stack flaw in MIB3 infotainment systems.
- 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-2023-28911?
CVE-2023-28911 is a medium-severity denial of service 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 specific flaw exists within the Bluetooth stack of the MIB3 infotainment. The issue results from the lack of proper validation of user-supplied data, which can result in an arbitrary channel disconnection. An attacker can leverage this vulnerability to cause a denial-of-service attack for every connected client of the infotainment device. 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-20
Which versions are affected by CVE-2023-28911?
How do I fix CVE-2023-28911?
No fix has been published for CVE-2023-28911 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-28911 being exploited?
There is no known exploitation of CVE-2023-28911 in the wild and no public exploit code.
Sources
Also known as GHSA-x974-v89x-m6c8.