CVE-2026-28918

Received Received - Intake

Out-of-Bounds Access in iOS and macOS via Malicious File Parsing

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: Apple Inc.

Description

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-05-11

Last Modified

2026-05-11

Generated

2026-07-11

AI Q&A

2026-05-12

EPSS Evaluated

2026-07-10

NVD

CVE-2026-28918

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.5
apple	ipad_os	26.5
apple	macos_tahoe	26.5
apple	tv_os	26.5
apple	vision_os	26.5
apple	watch_os	26.5

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds access issue that occurs when parsing a maliciously crafted file. It happens because of insufficient bounds checking, which means the software reads data outside the intended memory area.

This issue has been fixed in several Apple operating systems including iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5.

If exploited, it may cause an unexpected app termination.

Impact Analysis

The primary impact of this vulnerability is that parsing a maliciously crafted file can cause an app to terminate unexpectedly.

This could lead to denial of service for the affected application, potentially disrupting normal use.

Mitigation Strategies

To mitigate this vulnerability, update your Apple devices to the fixed versions: iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, or watchOS 26.5.

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