CVE-2026-64697

Analyzed Analyzed - Analysis Complete

Memory Corruption in macOS Sequoia, Sonoma, and Tahoe

Publication date: 2026-07-27

Last updated on: 2026-07-28

Assigner: Apple Inc.

Description

The 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 or corrupt kernel memory.

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-2026-64697

EUVD

EUVD-2026-49428

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-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 flaw in memory handling that could allow an app to cause unexpected system termination or corrupt kernel memory. It was addressed in specific macOS versions.

Detection Guidance

This vulnerability is specific to Apple macOS versions and relates to kernel memory corruption. Detection primarily involves checking your macOS version against the patched releases (Sequoia 15.7.8, Sonoma 14.8.8, Tahoe 26.6). No direct commands are provided in the context to detect active exploitation.

Impact Analysis

An attacker could exploit this to crash your system or corrupt critical memory, leading to data loss or instability. It requires an app to be installed or executed on your device.

Compliance Impact

The vulnerability may lead to unexpected system termination or kernel memory corruption, which could result in unauthorized data access or loss. This could potentially impact compliance with GDPR (data protection) and HIPAA (health data security) by compromising confidentiality or integrity of sensitive data.

Mitigation Strategies

Update to the latest patched versions of macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6 to address the memory handling issue.

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