CVE-2026-64736

Received Received - Intake

Out-of-Bounds Access in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-64736

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.6.1
apple	ipad_os	26.6.1
apple	macos_sequoia	15.8
apple	macos_tahoe	26.6.2
apple	tv_os	27
apple	vision_os	27
apple	watch_os	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is an out-of-bounds access vulnerability where improper bounds checking allows an app to read or write memory outside intended limits. This could lead to system crashes or kernel memory corruption.

Detection Guidance

This vulnerability is specific to Apple operating systems and requires patching rather than direct detection via commands. Check your device's current OS version against the fixed versions listed (iOS 26.6.1, iPadOS 26.6.1, etc.). Use system update commands like 'softwareupdate --list' on macOS or 'Settings > General > Software Update' on iOS to verify.

Impact Analysis

An attacker could exploit this to cause unexpected system termination or corrupt kernel memory, potentially leading to data loss, instability, or unauthorized access on affected devices.

Mitigation Strategies

Immediately update affected Apple devices to the latest versions: iOS 26.6.1, iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, or watchOS 27. Disable automatic loading of untrusted apps if possible until updates are applied.

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