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CVE-2023-28904— Bypass of secure boot process

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，该漏洞源于引导加载程序组件中的RAM缓冲区溢出，可能导致物理访问攻击者绕过固件签名验证并在引导过程中执行任意代码。

CVSS 5.2 · Medium EPSS 0.32% · P23
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I. Basic Information for CVE-2023-28904

Vulnerability Information
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Vulnerability Title
Bypass of secure boot process
Source: CVE Program / CVE List V5
Vulnerability Description
A logic flaw leading to a RAM buffer overflow in the bootloader component of the MIB3 infotainment unit allows an attacker with physical access to the MIB3 ECU to bypass firmware signature verification and run arbitrary code in the infotainment system at boot process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
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，该漏洞源于引导加载程序组件中的RAM缓冲区溢出，可能导致物理访问攻击者绕过固件签名验证并在引导过程中执行任意代码。
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-2023-28904

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III. Intelligence Information for CVE-2023-28904

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Vendor Advisories for CVE-2023-28904 (1)

News Coverage for CVE-2023-28904 (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-2023-28911 6.5 MEDIUM Arbitrary Channel Disconnection Resulting in Denial of Service
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-2023-28902 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-120

V. Comments for CVE-2023-28904

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