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Medium · 5.3 CVE-2026-89409 EUVD-2026-108186GHSA-w9rg-jqqv-77wp

Unvalidated ZWAVE_CMD_NODES_EXIST May Cause Deletion of End Nodes​

Published Oct 22, 2026 · Updated Oct 22, 2026 · Assigned by Silabs

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.

Affected products

VendorProductAffectedFixed
Silicon Labs Z-Wave SDK 7.0.0 – ≤ 8.1.1, ≤ 6.85.02 —

References