Is CVE-2026-47153 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-47153 being exploited in the wild.

How severe is CVE-2026-47153?

Informational severity, with a CVSS score of 7.1, published 25 June 2026.

Which products and versions are affected?

Silicon Labs EmberZNet v9.0.2 and earlier.

Is there a fix for CVE-2026-47153?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-47153 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-47153?

Check whether you run Silicon Labs EmberZNet at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-47153: Silicon Labs EmberZNet divide-by-zero in Level Control Step command

CVE-2026-47153 · Severity: info · CVSS 7.1 · Published 2026-06-25

Silicon Labs EmberZNet, a software stack used for Zigbee wireless networking in smart home and industrial IoT devices, is vulnerable to a denial-of-service attack. An attacker with access to the local wireless network can send a specifically crafted command that causes the device to crash. This results in the device becoming unresponsive, potentially disrupting smart home automation or industrial monitoring systems.

Technologies: Silicon Labs EmberZNet. Vendors: Silicon Labs.

Quick answers

Is CVE-2026-47153 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-47153 being exploited in the wild.
How severe is CVE-2026-47153?: Informational severity, with a CVSS score of 7.1, published 25 June 2026.
Which products and versions are affected?: Silicon Labs EmberZNet v9.0.2 and earlier.
Is there a fix for CVE-2026-47153?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-47153 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-47153?: Check whether you run Silicon Labs EmberZNet at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A divide-by-zero vulnerability (CWE-369) exists in Silicon Labs EmberZNet versions v9.0.2 and earlier. The flaw is triggered by a malformed 'Level Control Step' command sent to devices supporting the Level Control cluster. An attacker must be authenticated to the Zigbee network (PR:L) to deliver the payload. Successful exploitation results in a process crash, causing a denial of service on the affected IoT device. The vulnerability is reachable over the network via standard Zigbee communication protocols.

Affected products

Silicon Labs EmberZNet v9.0.2 and earlier

Timeline

2026-06-25: disclosed
2026-06-25: advisory

References

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