CVE-2026-84507

Received Received - Intake

Race Condition in Apple iOS and macOS Leading to Kernel Memory Corruption

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

A race condition was addressed with improved state handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt 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-2026-84507

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_sequoia	15.8
apple	macos_tahoe	26.7
apple	tv_os	27
apple	vision_os	27
apple	watch_os	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a race condition in Apple operating systems where improper state handling could allow an app to cause unexpected system termination or corrupt kernel memory. It was addressed by improving state management in iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.

Detection Guidance

Detection of this vulnerability requires checking the installed versions of Apple operating systems against the fixed versions. For iOS/iPadOS, macOS, tvOS, visionOS, and watchOS, compare your current version against iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27.

Impact Analysis

An attacker could exploit this to crash your device or corrupt critical system memory, potentially leading to data loss or unauthorized access. It primarily affects users running vulnerable versions of Apple's operating systems.

Mitigation Strategies

Immediately update all affected Apple devices to the latest versions specified in the advisory: iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27.

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