CVE-2023-28908

Integer Overflow in Non-Fragmented Data Reception

CVSS 5.4 MEDIUMEPSS 0.3%CWE-190

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.4EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

28 Jun 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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 integer overflow when receiving non-fragmented HCI packets on a channel. 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.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected products

Preh Car Connect GmbH (JOYNEXT GmbH) · Volkswagen MIB3 infotainment system MIB3 OI MQB

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References

https://asrg.io/security-advisories/vulnerabilities-in-volkswagen-mib3-infotainment-part-2/https://i.blackhat.com/EU-24/Presentations/EU-24-Parnishchev-OverTheAirVW.pdf https://pcacybersecurity.com/resources/advisory/vulnerabilities-in-vw-mib3-infotainment-2