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Dmh Wt7600nex FirmwareOperating system · Pioneer

CVE-2025-5834

HIGH · 7.8 CVSS v3.1 Published 2025-06-25
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

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 · unedited
Pioneer DMH-WT7600NEX Missing Immutable Root of Trust in Hardware Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to bypass authentication on affected installations of Pioneer DMH-WT7600NEX devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the configuration of the application system-on-chip (SoC). The issue results from the lack of a properly configured hardware root of trust. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the boot process. Was ZDI-CAN-26078.

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 · moderate confidence

This vulnerability in the Pioneer DMH-WT7600NEX car infotainment system stems from a misconfigured application SoC that lacks a properly implemented hardware root of trust. An attacker with local access can bypass the existing authentication mechanism and escalate privileges to execute arbitrary code during the boot process, effectively compromising the entire trust chain from hardware initialization.

MitigationThis hardware-level security flaw requires a firmware or hardware update from Pioneer that implements a proper immutable root of trust in the SoC configuration; end users should monitor for vendor patches and avoid unauthorized physical access to the device.

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
Dmh Wt7600nex FirmwareOperating system
Affected:= 3.05

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify the firmware version on the device
    Access the system settings menu on the Pioneer DMH-WT7600NEX, navigate to About or Device Info, and record the displayed firmware version number. Alternatively, if you have access to the update file or recovery mode, retrieve the version information from there.
    Affected if The displayed firmware version is exactly 3.05, as this is the only confirmed affected version.
  2. Confirm the device model
    Verify that the hardware model is specifically the Pioneer DMH-WT7600NEX. Check the device label, packaging, or system information to confirm the exact model number.
    Affected if The device model is DMH-WT7600NEX and the firmware is version 3.05.
  3. Assess physical access exposure
    Evaluate whether the device has been in an environment where unauthorized physical access was possible, such as unattended vehicles, shared access situations, or locations where the device could be accessed by untrusted individuals.
    Affected if Physical access by untrusted parties has occurred or is possible, which is a prerequisite for exploiting this vulnerability.
  4. Check for signs of unauthorized boot modification
    Inspect the device for any indication of boot manipulation or unexpected startup behavior. This may include unusual boot sequences, unexpected splash screens, or modification to the normal initialization process.
    Affected if The device exhibits anomalous boot behavior or shows evidence of tampering, which could indicate the vulnerability was exploited.

You are affected if your Pioneer DMH-WT7600NEX runs firmware version 3.05 and has been exposed to potential unauthorized physical access, as the SoC misconfiguration requires local access to bypass authentication during boot.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

This hardware-level security flaw requires a firmware or hardware update from Pioneer that implements a proper immutable root of trust in the SoC configuration; end users should monitor for vendor patches and avoid unauthorized physical access to the device.

Fix this in Dmh Wt7600nex Firmware Scoped from the published advisory
  • Consultation10.0 h
  • Implementation24.0 h
  • Testing16.0 h
  • Review / QA8.0 h
58.0 hours of engineering $10,160
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-5834 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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