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.
Published: 2026-01-30
Score: 9.2 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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History

Tue, 03 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Silabs
Silabs zigbee Stack
Vendors & Products Silabs
Silabs zigbee Stack

Fri, 30 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 30 Jan 2026 15:30:00 +0000

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'}


Subscriptions

Silabs Zigbee Stack
cve-icon MITRE

Status: PUBLISHED

Assigner: Silabs

Published:

Updated: 2026-01-30T15:36:46.637Z

Reserved: 2025-07-21T17:44:17.730Z

Link: CVE-2025-7964

cve-icon Vulnrichment

Updated: 2026-01-30T15:36:35.768Z

cve-icon NVD

Status : Deferred

Published: 2026-01-30T16:16:11.960

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-7964

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-02T09:27:26Z

Weaknesses