CVE-2023-34401

Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Inside profile folder there is a file, which is encoded with proprietary UD2 codec. Due to missed size checks in the enapsulate file, attacker can achieve Out-of-Bound Read in heap memory.

Published: 2025-02-13 Last update: 2025-06-27 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-34401 is rated Low Risk (33.9/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.32%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-34401

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-26 0.40% 0.32% -0.08%
2 2026-02-25 0.05% 0.40% +0.34%
3 2025-09-19 — 0.05% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34401

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-34401

Affected software / configurations for CVE-2023-34401

Vendor Product Version Raw CPE
mercedes-benz headunit_ntg6_mercedes-benz_user_experience <= 2021 cpe:2.3:a:mercedes-benz:headunit_ntg6_mercedes-benz_user_experience:*:*:*:*:*:*:*:*

References for CVE-2023-34401

cvelogic Threat Intelligence