CVE-2026-84619

Received Received - Intake

Out-of-Bounds Write in macOS Golden Gate

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

An out-of-bounds write issue 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 system termination or write kernel memory.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-84619

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is an out-of-bounds write vulnerability caused by insufficient bounds checking. An application could exploit this to write data outside intended memory regions, potentially corrupting kernel memory or causing system crashes.

Detection Guidance

This vulnerability is specific to Apple macOS versions and requires checking system software versions. Use the command 'sw_vers' to check your macOS version. Compare it against the fixed versions: macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7.

Impact Analysis

An attacker could exploit this to crash your system or execute malicious code with kernel privileges, leading to data loss, unauthorized access, or complete system compromise.

Mitigation Strategies

Update your macOS to the latest patched versions: Golden Gate 27, Sequoia 15.8, or Tahoe 26.7. Enable automatic updates in System Preferences to ensure future patches are applied promptly.

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