CVE-2026-18271
Received Received - Intake

Heap-based Buffer Overflow in Kenwood DNR1007XR

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
Kenwood DNR1007XR vCardParser Heap-based Buffer Overflow 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 vCardParser class. The issue results from the lack of proper validation of a user-supplied string before copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28974.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-18271
EUVD
EUVD-2026-63418

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
kenwood dnr1007xr *
kenwood dnr1007xr From 2026-07-29 (exc)
kenwood dnr1007xr to 2026-07-29 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a heap-based buffer overflow vulnerability in the Kenwood DNR1007XR device's vCardParser class. It allows physically present attackers to execute arbitrary code with root privileges without authentication. The flaw occurs due to insufficient validation of user-supplied strings before copying them to a heap-based buffer.

Detection Guidance

This vulnerability requires physical access to the device and cannot be detected remotely. Check if the Kenwood DNR1007XR device is running outdated firmware versions before the patch release date of July 29, 2026.

Impact Analysis

An attacker with physical access could exploit this to run malicious code on the device, potentially gaining full control as root. This could lead to unauthorized access, data theft, or device manipulation. The impact includes compromised confidentiality, integrity, and availability of the system.

Compliance Impact

This vulnerability allows arbitrary code execution with root privileges on affected Kenwood DNR1007XR devices without authentication. Such unauthorized access could lead to data breaches, unauthorized data modification, or system compromise, which may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data security).

Mitigation Strategies

Update the Kenwood DNR1007XR device to the latest firmware version released by Kenwood to address the heap-based buffer overflow vulnerability. Ensure physical access to the device is restricted to authorized personnel only.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-18271. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart