CVE-2025-1221 – SiLabs EmberZNet Zigbee Stack Denial of Service (DoS) Vulnerability

CVE ID : CVE-2025-1221

Published : July 30, 2025, 8:15 a.m. | 1 hour, 14 minutes ago

Description : A Zigbee Radio Co-Processor (RCP), which is using SiLabs EmberZNet Zigbee stack, was unable to send messages to the host system (CPCd) due to heavy Zigbee traffic, resulting in a Denial of Service (DoS) attack, Only hard reset will bring the device to normal operation

Severity: 0.0 | NA

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