CVE-2026-64749

Awaiting Analysis Awaiting Analysis - Queue

Memory Corruption in Apple iOS and macOS

Publication date: 2026-07-27

Last updated on: 2026-07-29

Assigner: Apple Inc.

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, visionOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-29

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-64749

EUVD

EUVD-2026-49509

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	visionos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This vulnerability involves a memory handling issue that could allow an app to cause unexpected system termination or corrupt kernel memory. It was addressed in specific versions of iOS, iPadOS, macOS, and visionOS.

Detection Guidance

This vulnerability is fixed in specific versions of Apple operating systems. Detection involves checking your system versions against the patched releases: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, or visionOS 26.6. If your system is running an older version, it may be vulnerable.

Impact Analysis

An attacker could exploit this to crash your device or corrupt critical system memory, potentially leading to data loss or instability. It primarily affects users running outdated versions of Apple's operating systems.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves potential system termination or kernel memory corruption, which could indirectly affect data integrity or availability.

Mitigation Strategies

Update affected systems to the latest patched versions: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, or visionOS 26.6. This addresses the memory handling issue that could lead to system termination or kernel memory corruption.

Hi! I’m here to help you understand CVE-2026-64749. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70