CVE-2026-18267

Root code execution via firmware-update symlink

Published Aug 20, 2026 · Updated Aug 20, 2026

Link following in the firmware update process in JVCKENWOOD DNR1007XR 1.7.0003.1000 allows physically proximate attackers to execute code. The updater follows an attacker-created symbolic link and moves a file to an arbitrary path, letting untrusted update content overwrite privileged locations. Exploitation requires physical access to place the crafted update material on the device, after which the arbitrary file move can yield root-level code execution.

CVSS severity6.8
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Link following in the firmware update process in JVCKENWOOD DNR1007XR 1.7.0003.1000 allows physically proximate attackers to execute code. The updater follows an attacker-created symbolic link and moves a file to an arbitrary path, letting untrusted update content overwrite privileged locations. Exploitation requires physical access to place the crafted update material on the device, after which the arbitrary file move can yield root-level code execution.

The record

CVE
CVE-2026-18267
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
JVCKENWOOD
Product
DNR1007XR
Classifications
CWE-59, CAPEC-132
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.7.0003.1000

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

JVCKENWOOD · DNR1007XRversion=1.7.0003.1000

Published CVSS scores

6.8ZDICVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
CAPEC-132Symlink Attack

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo