CVE-2026-43738
Received Received - Intake

Memory Disclosure in macOS Sequoia and Sonoma

Vulnerability report for CVE-2026-43738, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-27

Last updated on: 2026-07-27

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. Processing a maliciously crafted asset catalog may result in disclosure of process memory.

CVSS Scores

EPSS Scores

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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
EUVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
apple macos_sequoia 15.7.8
apple macos_sonoma 14.8.8

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This vulnerability involves memory disclosure when processing a maliciously crafted asset catalog. It was fixed in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8 with improved memory handling.

Impact Analysis

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

Mitigation Strategies

Update to macOS Sequoia 15.7.8 or macOS Sonoma 14.8.8 or later to address the vulnerability.

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