CVE-2026-47147
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EmberZNet OTA Server Out-of-Bounds Read Vulnerability

Publication date: 2026-06-25

Last updated on: 2026-06-25

Assigner: Silicon Graphics (SGI)

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.

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Meta Information

Published
2026-06-25
Last Modified
2026-06-25
Generated
2026-07-15
AI Q&A
2026-06-25
EPSS Evaluated
2026-07-14
NVD
CVE-2026-47147
EUVD
EUVD-2026-39401

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
silabs emberznet to 9.0.2 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability exists in EmberZNet version 9.0.2 and earlier. It occurs when malformed Over-The-Air (OTA) requests are sent to the OTA server parser, causing it to perform out-of-bounds reads. As a result, a limited amount of data from RAM is read back to the requester. However, these requests must originate from a device that has already joined the network, and only devices supporting the OTA Server cluster are affected.

Impact Analysis

The impact of this vulnerability is that an attacker with network access and the ability to send OTA requests from a joined device can cause the OTA server to leak a limited amount of RAM data. This could potentially expose sensitive information stored in memory, leading to information disclosure.

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