CVE-2026-66281 — Authenticated Denial-of-Service in Zigbee Discover Attributes Handling

CVE-2026-66281

Authenticated Denial-of-Service in Zigbee Discover Attributes Handling PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
Silicon Labs / EmberZNet	affected 0 through 9.1.1

CWE

CWE-835

References

https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000590.md

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.