CVE-2025-1221: DoS in Zigbee device due to heavy traffic
silabs.com · Zigbee
Vendor fix available · Affected: silabs.com Zigbee · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 11% of scored CVEs
DescriptionCVE.org
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 products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- silabs.com · Zigbeeup to and including 4.3.3; 4.4.3
- silabs.com · Zigbeeup to and including 2024.6.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- silabs.com
- Published
- July 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-1221 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.