CVE-2026-86870: A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate…

PriorityP431medium6.5CVSS 3.1

AVNACLPRNUIRSUCNINAH

EPSS

0.45%

38.2th percentile

A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.

Affected

10 ranges

Vendor	Product	Version range	Fixed in
apple	ios_and_ipados	< 26.7	26.7
apple	ios_and_ipados	< 27	27
apple	ipados	< 26.7	26.7
apple	iphone_os	< 26.7	26.7
apple	macos	< 27	27
apple	macos	< 27.0	27.0
apple	visionos	< 27	27
apple	visionos	< 27.0	27.0
apple	watchos	< 27	27
apple	watchos	< 27.0	27.0

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