What’s Vulnerable › Vulnerabilities

CVE-2026-47153: Level Control Step With On/Off divide-by-zero in EmberZNet v9.0.2

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-25 · updated 2026-10-25
• Weakness: CWE-369

Description

In EmberZNet v9.0.2 and earlier, a malformed Level Control Step command can terminate the process through a divide-by-zero fault. This command must come from a device that has already joined the network. Only devices supporting the Level Control cluster may be impacted.

Affected products

• Silicon Labs EmberZNet: through 9.0.2

References

• https://github.com/SiliconLabsSoftware/sisdk-release/
• https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationContext=S1

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