cve.bz

CVE-2025-1221

5.9 mediumEPSS 0.2%

Medium (5.9). EPSS 0.2% chance of exploitation in the next 30 days.

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

Severity

CVSS 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
EPSS
0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-31)
CWE
CWE-667
Published
Modified
Record from
the NVD, synced

References

Check your stackJSON