What’s Vulnerable › Vulnerabilities
CVE-2025-7964: Zigbee Router Denial of Service
- Severity: critical (CVSS 9.2 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-01-30 · updated 2026-06-17
- Weakness: CWE-229
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.
Affected products
- silabs.com Silicon Labs Zigbee Stack: through 4.4.6; through 2025.6.1
References
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