CVE-2026-43812

Analyzed Analyzed - Analysis Complete

Use After Free in Apple iOS and macOS Systems

Publication date: 2026-07-27

Last updated on: 2026-07-28

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 Tahoe 26.6, tvOS 26.6, visionOS 26.6. An app may be able to cause unexpected system termination.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-27

Last Modified

2026-07-28

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-43812

EUVD

EUVD-2026-49435

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	tvos	to 26.6 (exc)
apple	visionos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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 crashes or termination.

Detection Guidance

This vulnerability is specific to Apple operating systems and requires updating to patched versions to resolve. No direct detection commands are provided in the available context. Ensure systems are running iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, or visionOS 26.6 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 processes are terminated.

Compliance Impact

The provided CVE data does not specify how this vulnerability affects compliance with standards like GDPR or HIPAA. The issue involves a use after free flaw leading to potential system termination, but no direct impact on regulatory compliance is mentioned.

Mitigation Strategies

Update affected Apple devices to the latest versions: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, or visionOS 26.6 to address the use after free issue.

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