CVE-2026-47150: CWE-787: Out-of-bounds Write in Silicon Labs EmberZNet
In EmberZNet v9.0.2 and earlier, malformed IAS Zone enrollment messages can trigger an out-of-bounds state-table write and terminate the process. The size and location of this write is limited. These messages must come from a device that has already joined the network. Only devices supporting the IAS Zone cluster may be impacted.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-47150) in EmberZNet up to version 9.0.2 allows an attacker to send malformed IAS Zone enrollment messages that cause an out-of-bounds write in the state table, leading to process termination. The attack requires the malicious message to originate from a device already joined to the network and supporting the IAS Zone cluster. The out-of-bounds write is constrained in size and location, limiting the impact to process termination rather than arbitrary code execution. No official fix or patch has been disclosed as of the publication date.
Potential Impact
Successful exploitation results in an out-of-bounds write that terminates the affected process, potentially causing denial of service. The vulnerability requires network access with a device already joined and supporting the IAS Zone cluster, limiting the attack surface. There is no indication of privilege escalation or remote code execution from the available data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to trusted devices supporting the IAS Zone cluster and monitor for unusual enrollment messages. No official remediation or temporary fix is currently available.
CVE-2026-47150: CWE-787: Out-of-bounds Write in Silicon Labs EmberZNet
Description
In EmberZNet v9.0.2 and earlier, malformed IAS Zone enrollment messages can trigger an out-of-bounds state-table write and terminate the process. The size and location of this write is limited. These messages must come from a device that has already joined the network. Only devices supporting the IAS Zone cluster may be impacted.
CVSS v4.0
Score 7.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-47150) in EmberZNet up to version 9.0.2 allows an attacker to send malformed IAS Zone enrollment messages that cause an out-of-bounds write in the state table, leading to process termination. The attack requires the malicious message to originate from a device already joined to the network and supporting the IAS Zone cluster. The out-of-bounds write is constrained in size and location, limiting the impact to process termination rather than arbitrary code execution. No official fix or patch has been disclosed as of the publication date.
Potential Impact
Successful exploitation results in an out-of-bounds write that terminates the affected process, potentially causing denial of service. The vulnerability requires network access with a device already joined and supporting the IAS Zone cluster, limiting the attack surface. There is no indication of privilege escalation or remote code execution from the available data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to trusted devices supporting the IAS Zone cluster and monitor for unusual enrollment messages. No official remediation or temporary fix is currently available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Silabs
- Date Reserved
- 2026-05-18T20:02:03.669Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3d38364853345fc10a3564
Added to database: 06/25/2026, 14:16:22 UTC
Last enriched: 06/25/2026, 14:46:29 UTC
Last updated: 08/09/2026, 02:27:26 UTC
Views: 64
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