CVE-2023-51392: Silabs Emberznet

Critical severity, CVSS 9.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Ember ZNet between v7.2.0 and v7.4.0 used software AES-CCM instead of integrated hardware cryptographic accelerators, potentially increasing risk of electromagnetic and differential power analysis sidechannel attacks.

Affected products

• Silabs Emberznet: from 7.2.0, up to and including 7.2.4

Published 2024-02-23. Last modified 2026-06-17.