CVE-2026-84516

Received Received - Intake

Out-of-Bounds Read in macOS Golden Gate

Publication date: 2026-09-14

Last updated on: 2026-09-14

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. Processing a maliciously crafted file may result in unexpected app termination or disclosure of process memory.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-84516

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	27
apple	macos	15.8
apple	macos	26.7

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue caused by insufficient bounds checking. It allows processing of maliciously crafted files to potentially access memory outside intended boundaries. This could lead to unexpected app termination or disclosure of process memory.

Detection Guidance

This vulnerability involves an out-of-bounds read in macOS. Detection may require checking system logs for crashes or memory disclosures after processing files. Monitor for unexpected app terminations when handling files. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability may cause applications to crash unexpectedly or expose sensitive memory contents. Attackers could leverage it to gather information or disrupt services by processing specially crafted files.

Mitigation Strategies

Update to the latest macOS versions: Golden Gate 27, Sequoia 15.8, or Tahoe 26.7. Avoid opening untrusted files until patched. Monitor Apple's security advisories for further updates.

Hi! I’m here to help you understand CVE-2026-84516. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70