An issue was discovered in HERMES 2.1 in the MBUX Infotainment System on Mercedes-Benz…
Priority MEDIUM 46CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
An issue was discovered in HERMES 2.1 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. There is an out-of-bounds array access in RemoteDiagnosisApp.
Why it matters now
EPSS 0.0174 77th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mercedes-benz:hermes:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:a_220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:a_220_4matic:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:e_350:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:e_350_4matic:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:eqc:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:gle_350:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
| cpe:2.3:h:mercedes-benz:gle_350_4matic:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mercedes-benz |
- cpe:2.3:a:mercedes-benz:hermes:2.1:*:*:*:*:*:*:* Versions 2.1 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
- 2026-10-02 Threatist record created from CVE-2021-23910
- 2026-10-03 Alias added: GHSA-48rv-q8qm-4x9h
References
Exploit 1
More Mercedes-benz Hermes vulnerabilities
- TI-2021-06257 An issue was discovered in HERMES 2.1 in the MBUX Infotainment System on Mercedes-Benz… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-23910 · CVE Program
- CVE-2021-23910 · NVD
- FIRST EPSS
- GHSA-48rv-q8qm-4x9h · GitHub Advisory Database · CC BY 4.0
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