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
Advisories
Source ID Title
EUVD EUVD EUVD-2025-23150 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
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 31 Jul 2025 00:15:00 +0900

Type Values Removed Values Added
First Time appeared Silabs
Silabs emberznet
Vendors & Products Silabs
Silabs emberznet

Wed, 30 Jul 2025 23:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 30 Jul 2025 17:15:00 +0900

Type Values Removed Values Added
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
Title DoS in Zigbee device due to heavy traffic
Weaknesses CWE-667
References
Metrics cvssV4_0

{'score': 5.9, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Silabs

Published:

Updated: 2025-07-30T13:40:39.039Z

Reserved: 2025-02-11T05:43:30.180Z

Link: CVE-2025-1221

cve-icon Vulnrichment

Updated: 2025-07-30T13:40:33.353Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-30T08:15:33.133

Modified: 2025-07-31T18:42:37.870

Link: CVE-2025-1221

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-31T00:04:13Z

Weaknesses