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Medium · 6.0 CVE-2026-66281 EUVD-2026-108181GHSA-66pg-69wm-9qqf

Authenticated Denial-of-Service in Zigbee Discover Attributes Handling

Published Oct 22, 2026 · Updated Oct 23, 2026 · Assigned by Silabs

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.

Affected products

VendorProductAffectedFixed
Silicon Labs EmberZNet ≤ 9.1.1 —

References