CVE-2023-28895

Hard-coded password for access to power controller chip memory

MEDIUM
6.8
CVSS Score
Published: December 1, 2023 at 01:41 PM UTC
Updated: June 17, 2026 at 05:48 AM UTC
3 products affected across 2 vendorsMIB3 FirmwareMib3MIB3

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0304
Affected range stops below 0304, so it looks safe — our inference, not a vendor statement
preh-mib3 (same device)
v ≤ 0304
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-259CWE-798

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