CVE-2026-89409 — Unvalidated ZWAVE_CMD_NODES_EXIST May Cause Deletion of End Nodes

CVE-2026-89409

Unvalidated ZWAVE_CMD_NODES_EXIST May Cause Deletion of End Nodes PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Silicon Labs / Z-Wave SDK	affected 7.0.0 through 8.1.1; affected 0 through 6.85.02

CWE

CWE-940

References

https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000591.md

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.