CVE-2023-28897
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe MIB3 infotainment firmware contains a hardcoded secret value embedded directly in the code that provides authentication to critical UDS (Unified Diagnostic Services) diagnostic services. An attacker with knowledge of this secret can access sensitive diagnostic functions without proper authorization, potentially enabling ECU manipulation, data extraction, or vehicle control functions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2022CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm vehicle model and yearIdentify if the target vehicle is a Skoda Auto Superb 3 manufactured in 2022. Check the vehicle's VIN or documentation for the model year.Affected if Vehicle is a Skoda Auto Superb 3 with 2022 model year
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Check MIB3 infotainment firmware versionAccess the infotainment system settings to view the firmware version. This is typically found under Settings > System Info or Settings > About on the MIB3 unit. Alternatively, connect to the infotainment system via diagnostic tools and query the software version.Affected if Firmware version corresponds to 2022 release (confirm the version matches the affected 2022 release)
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Verify UDS diagnostic service accessibilityConnect to the vehicle's OBD-II port and attempt to access UDS diagnostic sessions. Use a diagnostic tool or CAN bus analyzer to send UDS requests (e.g., diagnostic session control 0x10) to ECUs. Check if diagnostic services respond without authentication prompts.Affected if UDS diagnostic services respond without requiring authentication, indicating the hardcoded secret may be in use
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Inspect firmware for hardcoded secretsIf firmware extraction is possible (through hardware debugging, firmware update files, or service mode), search the binary for the hardcoded secret string. Use strings extraction or hex analysis tools on the MIB3 firmware image.Affected if A hardcoded secret or credential string is found embedded in the firmware binary that provides UDS authentication
If the vehicle is a Skoda Auto Superb 3 with 2022 firmware and the MIB3 infotainment system exposes UDS diagnostic services without authentication challenges, the environment is likely affected by this vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataReplace the hardcoded secret with secure credential management (e.g., secure key storage, authentication tokens, or challenge-response authentication) and issue a firmware update through authorized dealer channels to patch the affected vehicles.
- Consultation8.0 h
- Implementation40.0 h
- Testing16.0 h
- Review / QA8.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-28897 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-28897 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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