CVE-2026-64699

Received Received - Intake

Memory Disclosure in macOS Sequoia

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description

A memory initialization 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 disclose kernel memory.

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-2026-64699

EUVD

EUVD-2026-49516

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_sequoia	15.7.8
apple	macos_sonoma	14.8.8
apple	macos_tahoe	26.6

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a memory initialization issue that could allow an app to disclose kernel memory. It was addressed by improving memory handling in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.

Impact Analysis

An attacker could exploit this flaw to access sensitive kernel memory, potentially leading to unauthorized data exposure or system compromise.

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 initialization issue.

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