CVE-2026-7763
Heap overflow in Morse HaLow WiFi driver enables unauthenticated RCE/DoS via beacon.
Is CVE-2026-7763 being exploited?
Not confirmed. CVE-2026-7763 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 0.54% probability of exploitation in the next 30 days.
How severe is CVE-2026-7763?
CVE-2026-7763 is rated Critical with a CVSS score of 9.8. 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-2026-7763?
Yes. A fix has been recorded for CVE-2026-7763. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-7763 affect?
CVE-2026-7763 affects Morse Micro HaLowLink 2 software < 2.11.13, morse.ko HaLow Wi-Fi kernel driver. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-7763?
Patch to 2.11.13+; apply firmware update now
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE and kernel panic via crafted TIM element in beacon; unauthenticated, within RF range.
Immediate action required
- affected< 2.11.13
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.