8.0
HIGH
CVE-2023-28909
Skoda MIB3 Bluetooth Integer Overflow Remote Code Execution Vulnerability
Description

A specific flaw exists within the Bluetooth stack of the MIB3 unit. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow when receiving fragmented HCI packets on a channel. An attacker can leverage this vulnerability to bypass the MTU check on a channel with enabled fragmentation. Consequently, this can lead to a buffer overflow in upper layer profiles, which can be used to obtain remote code execution. 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.

INFO

Published Date :

June 28, 2025, 4:15 p.m.

Last Modified :

June 28, 2025, 4:15 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.1
Affected Products

The following products are affected by CVE-2023-28909 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-28909 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-28909 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jun. 28, 2025

    Action Type Old Value New Value
    Added Description A specific flaw exists within the Bluetooth stack of the MIB3 unit. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow when receiving fragmented HCI packets on a channel. An attacker can leverage this vulnerability to bypass the MTU check on a channel with enabled fragmentation. Consequently, this can lead to a buffer overflow in upper layer profiles, which can be used to obtain remote code execution. 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.
    Added CVSS V3.1 AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-190
    Added Reference https://asrg.io/security-advisories/vulnerabilities-in-volkswagen-mib3-infotainment-part-2/
    Added Reference https://i.blackhat.com/EU-24/Presentations/EU-24-Parnishchev-OverTheAirVW.pdf
    Added Reference https://pcacybersecurity.com/resources/advisory/vulnerabilities-in-vw-mib3-infotainment-2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-28909 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-28909 weaknesses.

CVSS31 - Vulnerability Scoring System
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Latest DB Update: Jun. 29, 2025 4:00