[ CVE-2026-66281 · Published 22 Oct 2026 ]

Vulnerability in Silicon Labs EmberZNet

CVSS 6.0 No fix listed yet

[ Description ]Official description

In EmberZNet 9.1.1 and earlier, a malformed Discover Attributes command can result in a loop with unreachable exit condition (infinite loop). These messages must come from a device that has already joined the network. Only devices supporting manufacturer-specific clusters are impacted.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.