CVE-2026-43822

Received Received - Intake

Use After Free in Apple iOS and macOS

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-27

Generated

2026-07-28

AI Q&A

2026-07-28

EPSS Evaluated

N/A

NVD

CVE-2026-43822

EUVD

EUVD-2026-49540

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.6
apple	ipad_os	26.6
apple	macos_sequoia	15.7.8
apple	macos_sonoma	14.8.8
apple	macos_tahoe	26.6
apple	tv_os	26.6
apple	vision_os	26.6
apple	watch_os	26.6

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a use after free vulnerability caused by improper memory management. An application may free memory but continue to use it, leading to unexpected system termination or crashes.

Detection Guidance

This vulnerability is specific to Apple operating systems and requires checking installed versions against patched releases. Use system update commands like 'softwareupdate --list' on macOS or 'Settings > General > Software Update' on iOS/iPadOS to verify if your system is updated to iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, or later.

Impact Analysis

An attacker could exploit this to cause an app or system to crash unexpectedly. This may lead to data loss or denial of service if critical services are affected.

Mitigation Strategies

Immediately update affected Apple devices to the latest patched versions: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6. Enable automatic updates if not already active to prevent future vulnerabilities.

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