Type Confusion Vulnerability in macOS and tvOS by Apple
CVE-2026-64727

9.8CRITICAL

Key Information:

Vendor

Apple
Status
Mac OS
TV OS
Vendor
CVE Published:
27 July 2026

What is CVE-2026-64727?

A type confusion vulnerability was identified in macOS and tvOS that could lead to unexpected system terminations. This issue arises from insufficient memory handling, creating an opportunity for applications to exploit this flaw, possibly resulting in instability. The vulnerability has been addressed in the latest updates, ensuring enhanced memory management practices to protect users from potential disruptions.

Affected Version(s)

macOS 0 < 26.6

tvOS 0 < 26.6

References

https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128069

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.