CVE-2026-47152 Level Control Move divide-by-zero in EmberZNet v9.0.2
A malformed Level Control Move command from a joined device causes a divide-by-zero crash in EmberZNet, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-47152?
CVE-2026-47152 is a high-severity denial of service vulnerability in Silicon Labs EmberZNet, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In EmberZNet v9.0.2 and earlier, a malformed Level Control Move 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.
Weakness: CWE-369
Which versions are affected by CVE-2026-47152?
It affects 1 product.
Products include Silabs Emberznet.
How do I fix CVE-2026-47152?
No fix has been published for CVE-2026-47152 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-47152 being exploited?
There is no known exploitation of CVE-2026-47152 in the wild and no public exploit code.
Other vulnerabilities in Silicon Labs EmberZNet
- CVE-2023-41094 Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet
- CVE-2026-85079 Out-of-bounds write in Zigbee Simple_Desc_req handling
- CVE-2026-94502 Out-of-bounds write in Zigbee Publish Price Matrix handling
- CVE-2026-4526 Global ZCL command parser missing minimum-length validation in EmberZNet v9.0.2
- CVE-2026-47145 Color Control hue/saturation assertion abort in EmberZNet v9.0.2
Sources
Also known as GHSA-33vq-frr6-w8mj.