Hard-coded password for access to power controller chip memory
Priority LOW 32CWE-259Published · Updated
Key facts
- Attack vector
- Physical
- 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-259.
Summary
The password for access to the debugging console of the PoWer Controller chip (PWC) of the MIB3 infotainment is hard-coded in the firmware. The console allows attackers with physical access to the MIB3 unit to gain full control over the PWC chip. Vulnerability found 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 0.00313 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28895
- 2026-10-03 Alias added: GHSA-f52g-mqvx-jmjp
References
More Preh Mib3 Firmware vulnerabilities
- TI-2023-13389 Weak encoding for password in UDS services CVSS 3.1LOW 3.3
Sources
- CVE-2023-28895 · CVE Program
- CVE-2023-28895 · NVD
- FIRST EPSS
- GHSA-f52g-mqvx-jmjp · 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