CVE-2026-43655
Received Received - Intake
Out-of-Bounds Read in iOS and macOS Tahoe

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: Apple Inc.

Description
An out-of-bounds read 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, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.
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Meta Information
Published
2026-05-11
Last Modified
2026-05-11
Generated
2026-06-21
AI Q&A
2026-05-12
EPSS Evaluated
2026-06-20
NVD
CVE-2026-43655
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
apple ios 26.5
apple ipados 26.5
apple macos_tahoe 26.5
apple tvos 26.5
apple watchos 26.5
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is an out-of-bounds read issue that was addressed by improving bounds checking in affected Apple operating systems. It could allow an application to read memory outside of its intended boundaries.

Specifically, an app may be able to cause unexpected system termination or read kernel memory, which is memory reserved for the core of the operating system.

Impact Analysis

This vulnerability can impact you by allowing an application to cause your system to unexpectedly terminate (crash) or potentially read sensitive kernel memory.

Reading kernel memory could expose sensitive information or lead to further exploitation of the system.

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, and watchOS 26.5.

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