Denial of Service Flaw in SiLabs Zigbee Radio Co-Processor
CVE-2025-1221
Currently unrated
What is CVE-2025-1221?
A significant flaw in the Zigbee Radio Co-Processor, utilizing the SiLabs EmberZNet Zigbee stack, leads to a Denial of Service condition. This vulnerability occurs when the device is subjected to heavy Zigbee traffic, rendering it incapable of sending messages to the host system (CPCd). The only means to restore functionality is through a hard reset of the device, creating potential interruptions in service and connectivity for users.