CVE-2026-18273
Received Received - Intake

Incorrect Default Permissions Lead to Privilege Escalation in Kenwood DNR1007XR

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
Kenwood DNR1007XR USB Incorrect Default Permissions Local Privilege Escalation Vulnerability. This vulnerability allows physically present attackers to escalate privileges on affected installations of Kenwood DNR1007XR devices. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the configuration of the mount point for the USB filesystem. The issue results from incorrect permissions on a directory used by the product. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-29070.

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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-2026-18273
EUVD
EUVD-2026-63420

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
kenwood dnr1007xr *
kenwood dnr1007xr to 6.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-276 During installation, installed file permissions are set to allow anyone to modify those files.

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Executive Summary

This vulnerability affects the Kenwood DNR1007XR device. It allows physically present attackers to escalate privileges by exploiting incorrect default permissions on a USB filesystem mount point. Attackers with low-privileged code execution can gain root access and run arbitrary commands.

Detection Guidance

Detecting this vulnerability requires checking the permissions of the USB filesystem mount point on the Kenwood DNR1007XR device. Inspect the directory where USB devices are mounted for incorrect permissions that allow low-privileged users to escalate privileges. No specific commands are provided in the context, but you should verify the mount point configuration and permissions manually.

Impact Analysis

If you use a Kenwood DNR1007XR device, an attacker with physical access could exploit this flaw to gain full control over the system. This could lead to unauthorized access, data theft, or further compromise of connected systems.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it involves local privilege escalation on a specific hardware device (Kenwood DNR1007XR) rather than data handling or privacy controls. Compliance impacts would depend on how the device is used in a system processing sensitive data.

Mitigation Strategies

Apply the firmware update released by Kenwood to address the incorrect default permissions on the USB filesystem mount point. Ensure the update is installed on all affected devices to prevent privilege escalation by physically present attackers.

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