What’s Vulnerable › Vulnerabilities

CVE-2023-28911: Arbitrary Channel Disconnection Resulting in Denial of Service

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-28 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• Preh Car Connect GmbH (JOYNEXT GmbH) Volkswagen MIB3 infotainment system MIB3 OI MQB: through 0304

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

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