CVE-2025-1221: DoS in Zigbee device due to heavy traffic
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
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-1221?
CVE-2025-1221 has been classified as a Denial of Service (DoS) vulnerability.
How do I fix CVE-2025-1221?
To remediate CVE-2025-1221, performing a hard reset of the device is necessary to restore normal operation.
What can cause CVE-2025-1221?
CVE-2025-1221 occurs due to excessive Zigbee traffic preventing the Zigbee Radio Co-Processor from sending messages to the host system.
Which software is affected by CVE-2025-1221?
CVE-2025-1221 affects devices using the Silicon Labs EmberZNet Zigbee stack.
What is the impact of CVE-2025-1221?
The impact of CVE-2025-1221 is that it leads to a Denial of Service, disrupting normal communication until a hard reset is performed.