Vulnerability Description
A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | >= 26.0, < 26.6 |
| Apple | Tvos | < 26.6 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/128067Release NotesVendor Advisory
- https://support.apple.com/en-us/128069Release NotesVendor Advisory
FAQ
What is CVE-2026-64727?
CVE-2026-64727 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.
How severe is CVE-2026-64727?
CVE-2026-64727 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-64727?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos, Apple Tvos.