CVE-2026-64698
Local macOS flaw lets apps crash system or read kernel memory.
Is CVE-2026-64698 being exploited?
Not confirmed. CVE-2026-64698 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 0.60% probability of exploitation in the next 30 days.
How severe is CVE-2026-64698?
CVE-2026-64698 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-2026-64698?
Yes. A fix has been recorded for CVE-2026-64698. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-64698 affect?
CVE-2026-64698 affects macOS Sequoia 15.7.8 (fix), macOS Sonoma 14.8.8 (fix), macOS Tahoe 26.6 (fix). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-64698?
Install the listed macOS updates immediately on all macOS endpoints.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A local app can cause system termination or read kernel memory, enabling sensitive data disclosure and potential privilege escalation.
Immediate action required
- affected< 14.8.8
- affected< 15.7.8
- affected< 26.6
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.