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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.

PUBLISHED Reserved 2026-05-18 | Published 2026-06-25 | Updated 2026-06-25 | Assigner Silabs




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-125: Out-of-bounds Read

Product status

Default status
unaffected

Any version
affected

Credits

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

References

siliconlabs.lightning.force.com/...PQIA4?operationContext=S1 vendor-advisory permissions-required

github.com/SiliconLabsSoftware/sisdk-release/ patch

cve.org (CVE-2026-47148)

nvd.nist.gov (CVE-2026-47148)

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