CVE-2026-43711

Analyzed Analyzed - Analysis Complete

Memory Corruption in iOS and macOS via Malicious Video File

Publication date: 2026-07-27

Last updated on: 2026-07-28

Assigner: Apple Inc.

Description

A memory corruption issue was addressed with improved memory handling. 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. Processing a maliciously crafted video file may lead to unexpected app termination.

CVSS Scores

EPSS Scores

Probability:
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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-2026-43711

EUVD

EUVD-2026-49548

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 14.0 (inc) to 14.8.8 (exc)
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)
apple	watchos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This is a memory corruption vulnerability caused by improper memory handling. It occurs when a maliciously crafted video file is processed, potentially leading to unexpected app termination.

Detection Guidance

This vulnerability is specific to Apple operating systems and is triggered by processing maliciously crafted video files. Detection requires checking if your device is running an affected version of iOS, iPadOS, macOS, tvOS, visionOS, or watchOS. Use system update commands to verify your OS version.

Impact Analysis

If exploited, this vulnerability could cause apps to crash unexpectedly when processing a specially designed video file. This may disrupt normal device usage and lead to data loss if unsaved work is affected.

Compliance Impact

The vulnerability involves memory corruption that could lead to unexpected app termination when processing maliciously crafted video files. This type of issue may impact compliance with standards like GDPR or HIPAA if it results in unauthorized data access or processing disruptions, but the provided CVE details do not specify direct compliance implications.

Mitigation Strategies

Update your Apple devices to the latest 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. Avoid opening untrusted video files until the update is applied.

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