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CVE-2025-1221

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CVE-2025-1221

Published: Jul 30, 2025

Modified: Jul 30, 2025

PUBLISHED

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

VendorProductVersions

silabs.com

Zigbee

affected
0 - <= 4.3.3
affected
4.4.3

silabs.com

Zigbee

affected
0 - <= 2024.6.1

Weaknesses (CWE)

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CVE-2025-1221 - Security Vulnerability | QwikSec