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
References (4)
Scores
CVSS v4
5.9
EPSS
0.0004
EPSS Percentile
10.9%
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
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-667
Status
published
Products (3)
silabs.com/Zigbee
< 2024.6.1
silabs.com/Zigbee
< 4.3.3
silabs.com/Zigbee
4.4.3
Published
Jul 30, 2025
Tracked Since
Feb 18, 2026