Cyber Resilience

CVE-2025-7964

Critical

Published: 30 January 2026

Published
30 January 2026
Modified
15 April 2026
KEV Added
—
Patch
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CVSS Score v4 9.2 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0028 19.2th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-7964 is a critical-severity Improper Handling of Values (CWE-229) vulnerability in Silabs (inferred from references). Its CVSS base score is 9.2 (Critical).

Operationally, ranked at the 19.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

will be unable to rejoin. A manual recommissioning is required to recover the Zigbee Router.

CWE(s)
CWE-229

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Silabs
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References