CVE-2026-86882

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 image may lead to unexpected process termination.

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-2026-86882

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.7
apple	ipados	26.7
apple	ios	27
apple	ipados	27
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7
apple	tvos	27
apple	visionos	27
apple	watchos	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 images. A maliciously crafted image could trigger unexpected memory writes beyond allocated buffers, potentially crashing the application or system.

Detection Guidance

This vulnerability is specific to Apple operating systems and relates to image processing. Detection would typically involve checking system logs for crashes or unexpected terminations after processing images. No direct commands are provided in the context to detect this issue.

Impact Analysis

If exploited, this flaw could cause unexpected app or system crashes when processing malicious images. While it may not directly expose data, repeated crashes could disrupt device functionality or lead to denial-of-service conditions.

Mitigation Strategies

Update affected Apple devices to the latest versions mentioned (iOS 26.7, iPadOS 27, macOS Golden Gate 27, etc.) to apply the fix for the out-of-bounds write issue. Avoid processing untrusted or maliciously crafted images until updates are applied.

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