Out-of-Bounds Write in Apple iOS and macOS

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-27

Last Modified

2026-07-27

Generated

2026-07-28

AI Q&A

2026-07-28

EPSS Evaluated

N/A

NVD

CVE-2026-64772

EUVD

EUVD-2026-49522

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.6
apple	ipad_os	26.6
apple	macos_sequoia	15.7.8
apple	macos_tahoe	26.6
apple	tv_os	26.6
apple	vision_os	26.6

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is an out-of-bounds write vulnerability caused by insufficient input validation. It allows a remote attacker to write data outside the intended memory buffer, potentially corrupting heap memory or causing applications to crash.

Impact Analysis

An attacker could exploit this to crash applications on affected devices or corrupt memory, leading to unexpected behavior. This may include data corruption or denial of service for critical apps.

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