PT-2025-1229 · Mercedes Benz · Mbux+1

Published 2025-01-17 · Updated 2025-02-14 · CVE-2023-34401

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Mercedes-Benz head-unit NTG6 (affected versions not specified)

Description The issue is related to the import or export of profile settings over USB in the Mercedes-Benz head-unit NTG6. A file within the profile folder is encoded with a proprietary UD2 codec. Due to missing size checks in the enapsulate file, an attacker can achieve an Out-of-Bound Read in heap memory. Additionally, there is a buffer overflow vulnerability in the libspeech service of the Mercedes-Benz User Experience (MBUX) system when processing UD2 format files, which can allow an attacker to cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Heap Based Buffer Overflow

Buffer Overflow

Weakness Enumeration

CWE-125

CWE-122

CWE-119

Related Identifiers

BDU:2025-00608

CVE-2023-34401

Affected Products

Mbux

Mercedes-Benz Head-Unit Ntg6

References · 11

• https://bdu.fstec.ru/vul/2025-00608 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-34401 · Security Note
• https://osv.dev/vulnerability/CVE-2023-34401 · Vendor Advisory
• https://github.com/klsecservices/Advisories/blob/master/K-Mercedes-Benz-2023-006.md · Note
• https://securelist.ru/mercedes-benz-head-unit-security-research/111516 · Note
• https://t.me/cvedetector/18063 · Telegram Post
• https://twitter.com/CVEnew/status/1890170586724466851 · Twitter Post
• https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf · Note
• https://securelist.com/mercedes-benz-head-unit-security-research/115218 · Note
• https://twitter.com/bluepinksec/status/1890295101093523629 · Twitter Post
• https://t.me/cvenotify/111322 · Telegram Post