CVE-2026-64763
Received Received - Intake

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 by removing the vulnerable code. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-64763
EUVD
EUVD-2026-49614

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
apple ios 26.6
apple ipad_os 26.6
apple macos_sequoia 15.7.8
apple macos_sonoma 14.8.8
apple macos_tahoe 26.6
apple tv_os 26.6
apple vision_os 26.6
apple watch_os 26.6

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an out-of-bounds write issue that was fixed by removing the vulnerable code. Processing a maliciously crafted file could cause unexpected app termination or arbitrary code execution.

Impact Analysis

If exploited, this vulnerability could allow attackers to execute arbitrary code on your device or cause apps to crash unexpectedly. This could lead to data loss, unauthorized access, or other malicious activities depending on the app affected.

Mitigation Strategies

Update affected Apple devices to the latest versions: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-64763. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart