CVE-2025-1221
DoS in Zigbee device due to heavy traffic
- State
- Published
- Severity
- 5.9 Medium
- Published
- Jul 30, 2025
- Updated
- Jul 30, 2025
- Reserved
- Feb 11, 2025
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
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.9 Medium | CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | Silabs |
Weaknesses
- CWE-667 Improper Locking
Affected Products
| Product | Versions |
|---|---|
Zigbeesilabs.com |
|
Zigbeesilabs.com |
|
References
- https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-7.4.4.0.pdfrelease-notes
- https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-8.0.2.0.pdfrelease-notes
- https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-8.1.0.0.pdfrelease-notes
- https://community.silabs.com/068Vm00000Sadynvendor-advisorypermissions-required
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