CVE-2026-18269 Kenwood DNR1007XR tchdr_bytestream_read Out-Of-Bounds Write Code Execution Vulnerability
A physically present attacker can execute arbitrary code with root privileges on Kenwood DNR1007XR devices via an out-of-bounds write in the tchdr_bytestream_read function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18269?
CVE-2026-18269 is a medium-severity memory corruption vulnerability in Kenwood DNR1007XR, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Kenwood DNR1007XR tchdr_bytestream_read Out-Of-Bounds Write 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 tchdr_bytestream_read function. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28980.
Weakness: CWE-787
Which versions are affected by CVE-2026-18269?
How do I fix CVE-2026-18269?
No fix has been published for CVE-2026-18269 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-18269 being exploited?
There is no known exploitation of CVE-2026-18269 in the wild and no public exploit code.
Sources
Also known as GHSA-wg99-wchc-fc9x.