by Kastro
Paper/Archive/CVE-2025-7964

CVE-2025-7964

silabs.com Silicon Labs Zigbee Stack — Zigbee Router Denial of Service

EPSS 0.3%CVSS 9.2
critical.is priorityof 100
32
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 22.8.228 × 204.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

After receiving a malformed 802.15.4 MAC Data Request the Zigbee Coordinator sends a ‘network leave’ request to Zigbee router resulting in the Zigbee Router getting stuck in a non-rejoinable state. If a suitable parent is not available, the end devices will be unable to rejoin. A manual recommissioning is required to recover the Zigbee Router.

Affected

ProductAffectedFixed inSource
Silicon Labs Zigbee Stack≤ 4.4.6–CNA
Silicon Labs Zigbee Stack≤ 2025.6.1–CNA

Scores by source

Silabs (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

advisorycommunity.silabs.com/068Vm00000dspiL