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ZDI-26-487: (Pwn2Own) Kenwood DNR1007XR udhcpd Incorrect Permission Assignment Local Privilege Escalation Vulnerability

0
High
VulnerabilityCVE-2026-18270localcvecve-2026-18270cwe-732
Published: 08/20/2026 (08/20/2026, 16:14:15 UTC)
Source: Zero Day Initiative

Description

Kenwood DNR1007XR udhcpd Incorrect Permission Assignment Local Privilege Escalation Vulnerability. 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 udhcpd service. The issue results from incorrect permissions set on a resource used by the service. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of root. Was ZDI-CAN-29111.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/15/2026, 05:15:35 UTC

Technical Analysis

CVE-2026-18270 is a local privilege escalation vulnerability affecting Kenwood DNR1007XR devices. The flaw arises from incorrect permissions set on a resource used by the udhcpd service, enabling a local attacker with low-privileged code execution capabilities to escalate privileges to root. The vulnerability has a CVSS score of 7.8, indicating high severity. Kenwood has released a firmware update to correct this issue.

Potential Impact

An attacker who already has the ability to execute code with low privileges on the affected device can exploit this vulnerability to gain root-level privileges. This escalation can lead to full control over the device, compromising confidentiality, integrity, and availability.

Mitigation Recommendations

Kenwood has issued an official firmware update that addresses this vulnerability. Users of Kenwood DNR1007XR devices should apply the update promptly to remediate the issue.

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Technical Details

Article Source
{"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-487/","fetched":true,"fetchedAt":"2026-07-30T15:55:52.736Z","wordCount":201}
Classification
{"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}

Threat ID: 6a6b74c49c2644c7f84cc1e0

Added to database: 07/30/2026, 15:59:00 UTC

Last enriched: 08/15/2026, 05:15:35 UTC

Last updated: 09/10/2026, 19:36:52 UTC

Views: 53

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