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

Quick assessment

Affected
Preh Car Connect GmbH (JOYNEXT GmbH) Volkswagen MIB3 infotainment system MIB3 OI MQB
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Volkswagen MIB3 Infotainment是德国大众汽车（Volkswagen）公司的一款汽车上的信息娱乐系统。 Volkswagen MIB3 Infotainment存在安全漏洞，该漏洞源于蓝牙栈中缺乏对用户提供数据的适当验证，可能导致任意通道断开连接，进而导致拒绝服务攻击。

CVSS 6.5 · Medium EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-28911

Vulnerability Information
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Vulnerability Title
Arbitrary Channel Disconnection Resulting in Denial of Service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Volkswagen MIB3 Infotainment 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Volkswagen MIB3 Infotainment是德国大众汽车（Volkswagen）公司的一款汽车上的信息娱乐系统。 Volkswagen MIB3 Infotainment存在安全漏洞，该漏洞源于蓝牙栈中缺乏对用户提供数据的适当验证，可能导致任意通道断开连接，进而导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Preh Car Connect GmbH (JOYNEXT GmbH) Volkswagen MIB3 infotainment system MIB3 OI MQB 0 ~ 0304 -

II. Public POCs for CVE-2023-28911

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III. Intelligence Information for CVE-2023-28911

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Vendor Advisories for CVE-2023-28911 (1)

News Coverage for CVE-2023-28911 (1)

Same Patch Batch · Preh Car Connect GmbH (JOYNEXT GmbH) · 2025-06-28 · 12 CVEs total

CVE-2023-28910 8.0 HIGH Disabled Abortion Flag
CVE-2023-28909 8.0 HIGH Integer Overflow Leading to MTU Bypass
CVE-2023-28905 8.0 HIGH Heap buffer overflow in picserver
CVE-2023-28906 7.8 HIGH Command injection in networking service
CVE-2023-28907 6.7 MEDIUM A lack of access restrictions on internal memory regions
CVE-2023-29113 6.3 MEDIUM A lack of access control in custom IPC mechanism
CVE-2023-28912 5.7 MEDIUM Cleartext Phonebook Information
CVE-2023-28908 5.4 MEDIUM Integer Overflow in Non-Fragmented Data Reception
CVE-2023-28904 5.2 MEDIUM Bypass of secure boot process
CVE-2023-28902 3.3 LOW Denial of Service via integer underflow in picserver
CVE-2023-28903 3.3 LOW Volkswagen MIB3 Infotainment 安全漏洞

IV. Related Vulnerabilities

Same product: Volkswagen MIB3 infotainment system MIB3 OI MQB
Same vendor: Preh Car Connect GmbH (JOYNEXT GmbH)
Same weakness: CWE-20

V. Comments for CVE-2023-28911

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