Vulnerability · Published Jun 25, 2026 · Assigned by Silabs

CVE-2026-47148Groups GetGroupMembership count/list-length mismatch in EmberZNet v9.0.2

High 7.1

In plain English

A high-severity out-of-bounds read in EmberZNet from Silicon Labs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.4%top 62.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Silicon Labs	EmberZNet	0 – through 9.0.2

Weakness: CWE-125 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationContext=S1 vendor-advisory, permissions-required
https://github.com/SiliconLabsSoftware/sisdk-release/ patch