CVE-2026-84575

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Write in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-16

Assigner: Apple Inc.

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in 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 file may lead to unexpected app termination.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-16

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-84575

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 15.0 (inc) to 15.8 (exc)
apple	macos	From 26.0 (inc) to 26.7 (exc)
apple	ipados	to 27.0 (exc)
apple	iphone_os	to 27.0 (exc)
apple	visionos	to 27.0 (exc)
apple	watchos	to 27.0 (exc)
apple	tvos	to 27.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds write vulnerability caused by insufficient bounds checking. Processing a specially crafted file could allow an attacker to write data outside the intended memory area, potentially crashing the application.

Detection Guidance

This vulnerability is specific to Apple operating systems and involves processing maliciously crafted files. Detection would require checking system logs for crashes or unexpected terminations after file processing. No direct commands are provided in the context to detect this issue.

Impact Analysis

The vulnerability may cause unexpected app termination when processing malicious files. This could lead to denial-of-service conditions or potential data corruption if the affected app handles sensitive information.

Compliance Impact

The provided CVE data does not specify how this vulnerability impacts compliance with standards like GDPR or HIPAA. The description only mentions potential app termination due to processing maliciously crafted files.

Mitigation Strategies

Update affected Apple devices to the latest versions: iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, or watchOS 27. Avoid processing untrusted files until updates are applied.

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