CVE-2025-7964
Malformed 802.15.4 MAC Data Request causes Zigbee router to enter non-rejoinable state.
Is CVE-2025-7964 being exploited?
Not confirmed. CVE-2025-7964 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.26% probability of exploitation in the next 30 days.
How severe is CVE-2025-7964?
CVE-2025-7964 is rated Critical. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-7964?
Not known from our data. No patch reference has been recorded for CVE-2025-7964, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2025-7964 affect?
CVE-2025-7964 affects Zigbee Coordinator, Zigbee Router, Zigbee end devices. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-7964?
Apply vendor firmware patch; update Zigbee devices across the network.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Router stuck in non-rejoinable state; end devices can't rejoin, causing network downtime.
Patch when possible
- affected<= 4.4.6
- affected<= 2025.6.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.