CVE-2026-43683

Undergoing Analysis Undergoing Analysis - In Progress

Out-of-Bounds Read in macOS Golden Gate

Publication date: 2026-09-14

Last updated on: 2026-09-18

Assigner: Apple Inc.

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected process termination or disclose process memory.

CVSS Scores

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Meta Information

Published

2026-09-14

Last Modified

2026-09-18

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-03

NVD

CVE-2026-43683

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 15.0 (inc) to 15.8 (exc)
apple	macos	From 26.0 (inc) to 26.7 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability where an app can access memory outside the intended boundaries due to insufficient bounds checking. This may lead to unexpected app termination or exposure of sensitive process memory.

Detection Guidance

This vulnerability is specific to Apple macOS and requires updated versions to mitigate. Detection involves checking your macOS version against the fixed releases: macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7. Use the command 'sw_vers' in Terminal to check your current version.

Impact Analysis

An attacker could exploit this to crash an application or leak sensitive information from memory, potentially compromising user data or system integrity.

Compliance Impact

This vulnerability may lead to disclosure of process memory, which could expose sensitive data. This could potentially impact compliance with GDPR (data protection) or HIPAA (health information privacy) if personal or health data is involved.

Mitigation Strategies

Update to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 to address the out-of-bounds read vulnerability.

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