Vulnerability in Apple Macos
CVE-2026-64727
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 v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apple Macos — versions 0
- Apple Tvos — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-64727?
- CVE-2026-64727 is a critical-severity vulnerability in Apple Macos, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 9.8/10. Published 2026-07-27.
- How severe is CVE-2026-64727?
- Critical severity. CVSS v3 base score is 9.8 out of 10.