(Pwn2Own) Kenwood DNR1007XR JKGenService Command Injection Local Privilege Escalation Vulnerability

July 29th, 2026
ZDI-26-485 ZDI-CAN-29066

CVE ID

CVE-2026-18268

CVSS Score

7.0 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Kenwood

Affected Products

DNR1007XR

Vulnerability Details

This vulnerability allows local 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 JKGenService. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

Additional Details

Kenwood has issued an update to correct this vulnerability. More details can be found at:
https://www.kenwood.com/cs/ce/mm/firmware/2020/2020f/eng.html

Disclosure Timeline

  • 2026-02-03 - Vulnerability reported to vendor
  • 2026-07-29 - Coordinated public release of advisory
  • 2026-07-29 - Advisory Updated

Credit

Kazuki Furukawa (@_N4NU_) of GMO Cybersecurity by Ierae

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