CVE-2026-47145: CWE-617: Reachable Assertion in Silicon Labs EmberZNet
In EmberZNet v9.0.2 and earlier, malformed Color Control messages can lead to asserts that terminate the process. These messages must come from a device that has already joined the network. Only devices supporting the Color Control cluster may be impacted.
AI Analysis
Technical Summary
In EmberZNet versions up to and including 9.0.2, malformed Color Control cluster messages sent by devices that have joined the network can trigger assertions that terminate the process. This vulnerability is classified as CWE-617 (Reachable Assertion) and affects only devices supporting the Color Control cluster. The CVSS 4.0 base score is 7.1, indicating a high severity with network attack vector, low attack complexity, and no user interaction required. There is no official remediation or patch currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation causes the affected EmberZNet process to terminate due to triggered assertions, potentially leading to denial of service conditions on devices supporting the Color Control cluster within the network. This may disrupt normal device operation and network stability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor for malformed Color Control messages from joined devices and consider network-level controls to restrict untrusted devices from sending such messages. No official patch or workaround is currently documented.
CVE-2026-47145: CWE-617: Reachable Assertion in Silicon Labs EmberZNet
Description
In EmberZNet v9.0.2 and earlier, malformed Color Control messages can lead to asserts that terminate the process. These messages must come from a device that has already joined the network. Only devices supporting the Color Control 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
In EmberZNet versions up to and including 9.0.2, malformed Color Control cluster messages sent by devices that have joined the network can trigger assertions that terminate the process. This vulnerability is classified as CWE-617 (Reachable Assertion) and affects only devices supporting the Color Control cluster. The CVSS 4.0 base score is 7.1, indicating a high severity with network attack vector, low attack complexity, and no user interaction required. There is no official remediation or patch currently available, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation causes the affected EmberZNet process to terminate due to triggered assertions, potentially leading to denial of service conditions on devices supporting the Color Control cluster within the network. This may disrupt normal device operation and network stability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor for malformed Color Control messages from joined devices and consider network-level controls to restrict untrusted devices from sending such messages. No official patch or workaround is currently documented.
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: 6a3d38364853345fc10a3550
Added to database: 06/25/2026, 14:16:22 UTC
Last enriched: 06/25/2026, 14:46:57 UTC
Last updated: 06/26/2026, 02:08:30 UTC
Views: 4
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