CVE-2026-47148 Groups GetGroupMembership count/list-length mismatch in EmberZNet v9.0.2
A malformed command from a joined device causes out-of-bounds reads and process termination in EmberZNet, requiring a patch.
- 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-2026-47148?
CVE-2026-47148 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, malformed GetGroupMembership commands can trigger repeated reads past the end of the message payload and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed. Only devices supporting the Groups cluster may be impacted.
Weakness: CWE-125
Which versions are affected by CVE-2026-47148?
It affects 1 product.
Products include Silabs Emberznet.
How do I fix CVE-2026-47148?
No fix has been published for CVE-2026-47148 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-2026-47148 being exploited?
There is no known exploitation of CVE-2026-47148 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-c3rx-2jmc-fr2c.