Vulnerability Description
In Z-Wave SDK 8.1.1 and earlier (for 700/800 series devices) and 6.85.02 and earlier (for 500 series devices), missing checks in the ZWAVE_CMD_NODES_EXIST handler can result in nodes being removed from the network. These messages must come from a device that has already joined the network.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-89409?
CVE-2026-89409 is a documented vulnerability. In Z-Wave SDK 8.1.1 and earlier (for 700/800 series devices) and 6.85.02 and earlier (for 500 series devices), missing checks in the ZWAVE_CMD_NODES_EXIST handler can result in nodes being removed fro...
How severe is CVE-2026-89409?
CVSS scoring is not yet available for CVE-2026-89409. Check NVD for updates.
Is there a patch for CVE-2026-89409?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.