AppleCVE-2026-84627

Apple iOS and iPadOS: buffer overflow

CVE-2026-84627 · Published Oct 26, 2026 · updated Nov 2, 2026

High7.8

Fix: upgrade to 26.7.2 or later (3 fixed versions below)

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7.2, visionOS 27. Processing a maliciously crafted image may lead to heap corruption.

Affected versions

Package	Affected	Fixed in
iOS and iPadOS Product	< 26.7.2	26.7.2
	< 27	27
macOS Product	< 15.8	15.8
	< 26.7.2	26.7.2
	< 27	27
visionOS Product	< 27	27

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity from: NVD
Weakness: CWE-787

More Apple advisories

All Apple

UnscoredOct 26

Apple iOS and iPadOS: buffer overflowCVE-2026-86991fixed in 26.7.2 +2 UnscoredOct 26

The issue was addressed with improved memory handlingCVE-2026-86992fixed in 26.7.2 +2 UnscoredOct 26

This issue was addressed with improved input validationCVE-2026-86985fixed in 27.2 +2 UnscoredOct 26

Apple Safari: use after freeCVE-2026-86986fixed in 27.2 +2 Medium 5.5Oct 26

Apple iOS and iPadOS: missing authorizationCVE-2026-86987fixed in 27.2 Medium 4.3Oct 26

Apple iOS and iPadOS: memory corruptionCVE-2026-86988fixed in 27.2 +2