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TI-2021-06255 Aliases CVE-2021-23907GHSA-h34f-cf95-vh44

An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on…

Priority MEDIUM 47Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The count in MultiSvGet, GetAttributes, and MultiSvSet is not checked in the HiQnet Protocol, leading to remote code execution.

Why it matters now

EPSS 0.02362 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:mercedes-benz:headunit_ntg6_mercedes-benz_user_experience:2021:*:*:*:*:*:*:*2021VulnerableMercedes-benz
cpe:2.3:h:mercedes-benz:a_220:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
cpe:2.3:h:mercedes-benz:a_220_4matic:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
cpe:2.3:h:mercedes-benz:e_350:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
cpe:2.3:h:mercedes-benz:e_350_4matic:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
cpe:2.3:h:mercedes-benz:eqc:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
cpe:2.3:h:mercedes-benz:gle_350:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
cpe:2.3:h:mercedes-benz:gle_350_4matic:-:*:*:*:*:*:*:*not specified by NVDRunning onMercedes-benz
  • cpe:2.3:a:mercedes-benz:headunit_ntg6_mercedes-benz_user_experience:2021:*:*:*:*:*:*:* Versions 2021 Vulnerable ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:a_220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:a_220_4matic:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:e_350:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:e_350_4matic:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:eqc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:gle_350:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz
  • cpe:2.3:h:mercedes-benz:gle_350_4matic:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mercedes-benz

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23907
  2. 2026-10-03 Alias added: GHSA-h34f-cf95-vh44

References

Exploit 1

Advisory 2

  • TI-2023-17228 Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over… CVSS 3.1CRITICAL 9.8
  • TI-2021-06256 An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on… CVSS 3.1CRITICAL 9.8
  • TI-2023-17229 Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over… CVSS 3.1HIGH 7.5
  • TI-2023-17227 Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over… CVSS 3.1HIGH 7.5
  • TI-2023-17226 Mercedes Benz head-unit NTG 6 contains functions to import or export profile settings… CVSS 3.1HIGH 7.5
  • TI-2023-17231 Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over… CVSS 3.1HIGH 7.7
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences