Affects multiple Apple operating systems used broadly across enterprises and consumers; critical OS-level flaw with CVSS 9.8 that warrants enterprise-wide attention.
CVE-2026-64772
Out-of-bounds write in Apple OS leading to crashes and heap corruption.
Is CVE-2026-64772 being exploited?
Not confirmed. CVE-2026-64772 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 0.63% probability of exploitation in the next 30 days.
How severe is CVE-2026-64772?
CVE-2026-64772 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-2026-64772?
Yes. A fix has been recorded for CVE-2026-64772. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-64772 affect?
CVE-2026-64772 affects iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, and 2 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-64772?
Install the listed OS updates immediately; deploy via MDM and verify device inventory.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can cause application termination or heap corruption; may enable further exploitation (potential code execution) via crafted input.
Patch when possible
- affected< 18.7.10
- affected< 26.6
- affected< 15.7.8
- affected< 26.6
- affected< 26.6
- 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.