CVE-2026-47147: Silabs Emberznet

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

In EmberZNet v9.0.2 and earlier, malformed OTA requests can drive the OTA server parser into out-of-bounds reads. A limited amount of data from RAM is read back to the requester. The size and location of this data is limited. These requests must come from a device that has already joined the network. Only devices supporting the OTA Server cluster may be impacted.

Affected products

• Silabs Emberznet: up to and including 9.0.2

Published 2026-06-25. Last modified 2026-06-25.