CVE-2026-64727

CriticalCVSS 9.8/10Last modified Jul 29, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 27, 2026
Last modified
Jul 29, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-647286.5A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, CVE-2026-647299.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOCVE-2026-64738.8Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocatioCVE-2026-647306.5The issue was addressed with improved UI. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOCVE-2026-647319.8A path handling issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Tahoe 26.6. A malicious appCVE-2026-647324.6This issue was addressed through improved state management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6,CVE-2026-647339.8This issue was addressed with improved data protection. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionCVE-2026-647345.5The issue was addressed with improved checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS SequoiaCVE-2026-647356.5An inconsistent user interface issue was addressed with improved state management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOCVE-2026-647367.1An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS SequoiCVE-2026-647378.2An authorization issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOSCVE-2026-647389.8A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8,
CVE-2026-64727: Critical severity, CVSS 9.8 | Vulnix