CVE-2026-47147OTA server raw parser missing per-field bounds validation in EmberZNet v9.0.2

Description

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationCo… vendor-advisorypermissions-requiredPermissions Required
• https://github.com/SiliconLabsSoftware/sisdk-release/ patchNot Applicable