Is CVE-2026-18269 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-18269 being exploited in the wild.

How severe is CVE-2026-18269?

Medium severity, with a CVSS score of 6.8, published 20 August 2026.

Which products and versions are affected?

Kenwood DNR1007XR prior to 2026-07-29 firmware update.

Is there a fix for CVE-2026-18269?

A patch was published on 2026-07-29: Firmware update released (S_V2_0_0003_1000.zip) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-18269 attacked?

It is attacked with physical access, in a network appliance.

Am I affected by CVE-2026-18269?

Check whether you run Kenwood DNR1007XR at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-18269: Kenwood DNR1007XR out-of-bounds write in tchdr_bytestream_read

CVE-2026-18269 · Severity: medium · CVSS 6.8 · Published 2026-08-20

The Kenwood DNR1007XR is a navigation and multimedia receiver system used in vehicles. A buffer overflow vulnerability in the firmware's file parsing allows an attacker with physical access to the device to execute arbitrary code with root privileges, potentially gaining complete control of the in-vehicle infotainment system and any connected vehicle functions.

Technologies: Kenwood DNR1007XR. Vendors: Kenwood.

Quick answers

Is CVE-2026-18269 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-18269 being exploited in the wild.
How severe is CVE-2026-18269?: Medium severity, with a CVSS score of 6.8, published 20 August 2026.
Which products and versions are affected?: Kenwood DNR1007XR prior to 2026-07-29 firmware update.
Is there a fix for CVE-2026-18269?: A patch was published on 2026-07-29: Firmware update released (S_V2_0_0003_1000.zip) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-18269 attacked?: It is attacked with physical access, in a network appliance.
Am I affected by CVE-2026-18269?: Check whether you run Kenwood DNR1007XR at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is a classic out-of-bounds write (buffer overflow) vulnerability in the tchdr_bytestream_read function within the DNR1007XR firmware. The root cause is insufficient validation of user-supplied data, allowing an attacker to write beyond the bounds of an allocated buffer. The attack vector is physical—an attacker must have hands-on access to the device, typically via USB or similar media interfaces used for firmware updates or media playback. No authentication is required to trigger the vulnerability. Successful exploitation results in arbitrary code execution in the root security context, granting the attacker full control of the device. Kenwood released a firmware update (version 2_0_0003 as of 2026-07-29) to address this and related vulnerabilities.

Affected products

Kenwood DNR1007XR prior to 2026-07-29 firmware update

Timeline

2026-02-03: disclosed: Vulnerability reported to Kenwood
2026-07-29: patched: Firmware update released (S_V2_0_0003_1000.zip)
2026-07-29: advisory: ZDI-26-486 / ZDI-CAN-28980 public disclosure

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.