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I. Basic Information for CVE-2025-1221
Vulnerability Information

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Vulnerability Title
DoS in Zigbee device due to heavy traffic
Source: NVD (National Vulnerability Database)
Vulnerability 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
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
加锁机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Silicon Labs Zigbee EmberZNet SDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Silicon Labs Zigbee EmberZNet SDK是美国Silicon Labs公司的一个用于开发Zigbee网络的软件开发工具包 Silicon Labs Zigbee EmberZNet SDK存在安全漏洞,该漏洞源于高流量导致消息发送失败,可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
silabs.comZigbee 0 ~ 4.3.3 -
silabs.comZigbee 0 ~ 2024.6.1 -
II. Public POCs for CVE-2025-1221
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III. Intelligence Information for CVE-2025-1221
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IV. Related Vulnerabilities
V. Comments for CVE-2025-1221

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