CVE-2026-64696

Analyzed Analyzed - Analysis Complete

Memory Corruption in macOS Sequoia

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. A remote user 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-2026-64696

EUVD

EUVD-2026-49543

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 memory handling issue in Apple macOS versions. A remote attacker could exploit this to cause unexpected system termination or corrupt kernel memory, potentially leading to system instability or crashes.

Detection Guidance

Detection of this vulnerability requires checking if your macOS system is running a vulnerable version. Compare your current macOS version against the fixed versions: Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6. If your version is older, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow a remote attacker to crash your system or corrupt critical kernel memory, leading to data loss, application failures, or unauthorized access to sensitive information on your device.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves kernel memory corruption or unexpected system termination, which could potentially lead to data breaches or unauthorized access if exploited. However, no explicit details are given about compliance implications.

Mitigation Strategies

Update your macOS to the latest patched versions: 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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