Divide-by-Zero Vulnerability in EmberZNet by Silicon Labs
CVE-2026-47153

7.1HIGH

Key Information:

Vendor

Silicon Labs

Status
Emberznet
Vendor
CVE Published:
25 June 2026

What is CVE-2026-47153?

In EmberZNet versions up to v9.0.2, a vulnerability exists that can lead to process termination via a divide-by-zero fault. This issue arises when a malformed Level Control Step command is issued from a previously joined device within the network. Devices that support the Level Control cluster are particularly susceptible to this flaw, making their stability a concern.

Affected Version(s)

EmberZNet 0 <= 9.0.2

References

https://siliconlabs.lightning.force.com/sfc/servlet.sheph...
vendor-advisorypermissions-required
https://github.com/SiliconLabsSoftware/sisdk-release/
patch

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Junming C. (@Chapoly1305) and Prof. Qiang Zeng of George Mason University
.