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OpenAdvisories
High · 7.1 CVE-2026-47147 EUVD-2026-39401GHSA-522j-298p-h26w

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

Published Jun 25, 2026 · Updated Jun 25, 2026 · Assigned by Silabs

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.

Affected products

VendorProductAffectedFixed
Silicon Labs EmberZNet ≤ 9.0.2 —

References