CVE-2026-66281: medium-severity vulnerability in Silicon Labs EmberZNet
Authenticated Denial-of-Service in Zigbee Discover Attributes Handling
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Silicon Labs · EmberZNetRelated CVEs — Silicon Labs EmberZNet
In the same product, most dangerous first.
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