CVE-2026-84546

Received Received - Intake

Out-of-Bounds Write in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

An out-of-bounds write issue was addressed with improved bounds checking. 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. Processing a maliciously crafted 3D model may lead to memory corruption.

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-2026-84546

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 is an out-of-bounds write vulnerability caused by insufficient bounds checking when processing 3D models. A maliciously crafted file could trigger memory corruption by writing data outside intended memory regions.

Detection Guidance

This vulnerability involves processing maliciously crafted 3D models leading to memory corruption. Detection requires checking if your system is running an affected version of Apple's operating systems. Use system update commands like 'softwareupdate --list' on macOS or check Settings > General > Software Update on iOS/iPadOS to verify if updates are installed.

Impact Analysis

If exploited, this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service on affected devices. It specifically requires user interaction to process a malicious 3D model.

Mitigation Strategies

Immediately update all Apple devices to the latest versions: iOS 27, iPadOS 27, macOS Sequoia 15.8 or later, macOS Golden Gate 27, macOS Tahoe 26.7, tvOS 27, visionOS 27, or watchOS 27. Disable unnecessary 3D model processing if possible until updates are applied.

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