CVE-2026-64771

CRITICAL | Platform: macOS | Changelog

CVE Details

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.

CVSS 3.1 Score

Metric	Value
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`

Weakness

CWE-119

References

Apple Security Advisory
NVD Entry
https://support.apple.com/en-us/128066 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128067 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128069 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128070 (Release Notes, Vendor Advisory)