CVE-2026-18267
Received Received - Intake

Firmware Update Link Following Code Execution in Kenwood DNR1007XR

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
Kenwood DNR1007XR Firmware Update Link Following Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Kenwood DNR1007XR devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the firmware update process. By creating a symbolic link, an attacker can abuse the service to move a file to an arbitrary location. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28751.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-18267
EUVD
EUVD-2026-63413

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
kenwood dnr1007xr *
kenwood dnr1007xr to 2026-07-21 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-59 The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

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Executive Summary

This vulnerability is a firmware update link following code execution flaw in the Kenwood DNR1007XR device. It allows physically present attackers to execute arbitrary code with root privileges without authentication by exploiting a symbolic link issue during firmware updates.

Detection Guidance

This vulnerability requires physical access to the device and cannot be detected remotely. Check for unauthorized firmware updates or unexpected file modifications on the Kenwood DNR1007XR device. Verify the firmware version matches the official update from Kenwood.

Impact Analysis

An attacker could gain full control over the device, potentially accessing sensitive data, altering system functions, or installing malicious software. Since the device is a car navigation system, this could also affect vehicle operations if integrated with other systems.

Compliance Impact

This vulnerability allows physically present attackers to execute arbitrary code with root privileges on Kenwood DNR1007XR devices without authentication. Such unauthorized code execution could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. The lack of authentication and root-level access could also result in data integrity breaches or system unavailability, further compromising compliance with these standards.

Mitigation Strategies

Apply the official firmware update from Kenwood immediately. Ensure the device is updated to the latest version to address the symbolic link flaw. Restrict physical access to the device to prevent exploitation.

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