Pioneer DMH-WT7600NEX Missing Immutable Root of Trust in Hardware Local Privilege Escalation Vulnerability

Vulnerability Details

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.

Additional Details

Fixed in Version 3.07 https://www.pioneerelectronics.com/PUSA/Support/Downloads

Disclosure Timeline

• 2025-01-14 - Vulnerability reported to vendor
• 2025-06-11 - Coordinated public release of advisory
• 2025-08-28 - Advisory Updated

Credit

Dmitry "InfoSecDJ" Janushkevich of Trend Micro Zero Day Initiative

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