CVE-2026-89409mediumCWE-940

CVE-2026-89409: medium-severity vulnerability in Silicon Labs Z-Wave SDK

Unvalidated ZWAVE_CMD_NODES_EXIST May Cause Deletion of End Nodes​

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
Silicon Labs · Z-Wave SDK
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