CVE-2026-86924

Received Received - Intake

Memory Corruption in iOS and macOS via Malicious Accessory

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7. Connecting a malicious accessory may cause unexpected system termination.

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-2026-86924

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.7
apple	ipad_os	26.7
apple	ios	27
apple	ipad_os	27
apple	macos_golden_gate	27
apple	macos_tahoe	26.7

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a memory corruption vulnerability caused by insufficient input validation when connecting a malicious accessory to an Apple device. It can lead to unexpected system termination or crashes.

Detection Guidance

This vulnerability involves memory corruption from a malicious accessory. Detection primarily relies on monitoring system behavior after connecting accessories. Check for unexpected system crashes or reboots when connecting new hardware. Review system logs for errors related to accessory connections or memory corruption events.

Impact Analysis

If exploited, this vulnerability may cause your Apple device to crash or shut down unexpectedly when a malicious accessory is connected. This could lead to data loss or disruption of services.

Mitigation Strategies

Update affected devices to the latest versions: iOS 26.7 or later, iPadOS 26.7 or later, iOS 27 or later, iPadOS 27 or later, macOS Golden Gate 27, or macOS Tahoe 26.7. Avoid connecting untrusted or unknown accessories until the update is applied.

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