CVE-2026-64704

Analyzed Analyzed - Analysis Complete

Type Confusion in macOS Leading to System Termination

Publication date: 2026-07-27

Last updated on: 2026-07-28

Assigner: Apple Inc.

Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-27

Last Modified

2026-07-28

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-64704

EUVD

EUVD-2026-49498

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 14.0 (inc) to 14.8.8 (exc)
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	macos	From 26.0 (inc) to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-843	The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Attack-Flow Graph

Executive Summary

A type confusion issue was addressed with improved memory handling. This flaw could allow an app to cause unexpected system termination due to incorrect type interpretation during memory operations.

Detection Guidance

This vulnerability is specific to Apple macOS versions and does not provide direct detection commands. To check if your system is affected, verify your macOS version against the fixed releases: Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6. Use the command 'sw_vers' to check your current version.

Impact Analysis

An attacker could exploit this to crash your system unexpectedly. This may lead to data loss or disrupt critical operations if the system terminates improperly.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves a type confusion issue leading to potential system termination, but no details are given about data exposure or privacy implications that would affect regulatory compliance.

Mitigation Strategies

Update your macOS to the latest patched versions immediately: Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6. This addresses the type confusion issue by improving memory handling. Enable automatic updates to prevent future vulnerabilities.

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