Hard-coded password for UDS services
Priority MEDIUM 43CWE-798Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-798.
Summary
The secret value used for access to critical UDS services of the MIB3 infotainment is hardcoded in the firmware. Vulnerability discovered on Škoda Superb III (3V3) - 2.0 TDI manufactured in 2022.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00312 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| JOYNEXT | MIB3 Infotainment Unit | up to 0304 | — | No fix listed | CNA |
- MIB3 Infotainment Unit VendorJOYNEXT Affected up to 0304 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:skoda-auto:superb_3_firmware:2022:*:*:*:*:*:*:* | 2022 | Vulnerable | Skoda Auto |
| cpe:2.3:h:skoda-auto:superb_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Skoda Auto |
- cpe:2.3:o:skoda-auto:superb_3_firmware:2022:*:*:*:*:*:*:* Versions 2022 Vulnerable ·Skoda Auto
- cpe:2.3:h:skoda-auto:superb_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Skoda Auto
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28897
- 2026-10-03 Alias added: GHSA-3wxj-wj2j-9jpg
References
More Skoda Auto Superb 3 Firmware vulnerabilities
- TI-2023-13392 Denial of Service via ECU reset service CVSS 3.1MEDIUM 5.5
- TI-2023-13391 Head Unit Denial-of-Service via Apple CarPlay service CVSS 3.1MEDIUM 5.3
Sources
- CVE-2023-28897 · CVE Program
- CVE-2023-28897 · NVD
- FIRST EPSS
- GHSA-3wxj-wj2j-9jpg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences