CVE-2023-28904
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 · uneditedA logic flaw leading to a RAM buffer overflow in the bootloader component of the MIB3 infotainment unit allows an attacker with physical access to the MIB3 ECU to bypass firmware signature verification and run arbitrary code in the infotainment system at boot process.
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 confidenceA logic flaw in the MIB3 infotainment unit bootloader allows a RAM buffer overflow that bypasses firmware signature verification, enabling arbitrary code execution at boot with physical access to the ECU.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Physical
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
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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Identify MIB3 infotainment hardwareLocate the infotainment unit in the vehicle and confirm it is the MIB3 (Media Interface 3) system. Check the unit label, firmware build info, or vehicle system info screen for the MIB3 designation.Affected if The system is not an MIB3 unit, then this CVE does not apply.
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Determine bootloader versionAccess the bootloader version through the ECU diagnostics, service mode, or by connecting to the CAN bus with appropriate diagnostic tools (e.g., ODIS, VAG-COM) and reading the bootloader identifier from the MIB3 ECU.Affected if The bootloader version cannot be determined or the unit lacks a readable bootloader version field.
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Compare to vendor fixed versionObtain the corrected bootloader version number from the vehicle manufacturer security advisory or service bulletin. Compare your extracted bootloader version against this fixed version.Affected if The installed bootloader version matches or predates the vulnerable version range and is below the patched version.
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Verify physical access exposureAssess whether the MIB3 ECU is physically accessible (e.g., in the dashboard, trunk, or rear entertainment area). Determine if an attacker with physical access could connect to the ECU or manipulate the boot process.Affected if Physical access to the ECU is possible and the bootloader is in a vulnerable version state.
You are affected if your vehicle contains an MIB3 infotainment unit running a bootloader version within the vulnerable range and an attacker could physically access the ECU to exploit the signature verification bypass.
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 dataApply vendor-provided bootloader firmware update to patch the logic flaw and restore proper signature verification; restrict physical access to the MIB3 ECU as a compensating control.
- Consultation12.0 h
- Implementation32.0 h
- Testing20.0 h
- Review / QA12.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $21,312.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-28904 — 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-2023-28904 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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