Vulnerability · NVD

CVE-2026-64775

CVE-2026-64775 : critical severity (CVSS 9.8). No tracked catalog app is linked to this CVE.

Severity (CVSS): 9.8
Exploitation: 0.7 %
Tracked apps: 0
Still exposed: 0

Published on 2026-07-27

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

EPSS 0.66% exploit very unlikely percentile 49.6%

OS versions that fix this CVE

This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.

iOS Fixed in 26.6
iPadOS Fixed in 26.6
macOS Fixed in 26.6 15.7.8 14.8.8

View on NVD ↗ Advisory · support.apple.com

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