CVE-2026-20687

published 2026-03-25

CVE-2026-20687: A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS…

high 7.1 CVSS 3.1

AV L AC L PR N UI R S U C N I H A H

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Tahoe 26.4, tvOS 26.4, watchOS 26.4. An app may be able to cause unexpected system termination or write kernel memory.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
apple	ios_and_ipados	< 18.7.7	18.7.7
apple	ios_and_ipados	< 26.4	26.4
apple	ipados	< 18.7.7	18.7.7
apple	ipados	>= 26.0 < 26.4	26.4
apple	iphone_os	< 18.7.7	18.7.7
apple	iphone_os	>= 26.0 < 26.4	26.4
apple	macos	< 15.7.5	15.7.5
apple	macos	< 26.4	26.4
apple	macos	>= 15.0 < 15.7.5	15.7.5
apple	macos	>= 26.0 < 26.4	26.4
apple	tvos	< 26.4	26.4
apple	watchos	< 26.4	26.4

CWE-416