CVE-2025-7964

Zigbee Router Denial of Service

Published Jan 30, 2026 CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Silabs
Silabs zigbee Stack
Vendors & Products Silabs
Silabs zigbee Stack
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Zigbee Router Denial of Service
Weaknesses CWE-229
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Silabs
Published
Updated
Jan 30, 2026, 3:36 PM
Reserved
Jul 21, 2025, 5:44 PM
Status
Deferred
Published
Jan 30, 2026, 4:16 PM
Modified
Jun 17, 2026, 10:06 AM