CVE-2026-43654
Received Received - Intake
Memory Disclosure in Apple iOS and macOS

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: Apple Inc.

Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to disclose 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-2026-43654
Affected Vendors & Products
Showing 8 associated CPEs
Vendor Product Version / Range
apple ios 18.7.9
apple ipados 18.7.9
apple macos_sequoia 15.7.7
apple macos_sonoma 14.8.7
apple macos_tahoe 26.5
apple tvos 26.5
apple visionos 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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Impact Analysis

If exploited, this vulnerability could allow an application to access and disclose kernel memory. This could lead to exposure of sensitive system information, potentially compromising the security and stability of the affected device.

Executive Summary

This vulnerability involves improper memory handling in certain Apple operating systems. Specifically, an application may be able to disclose kernel memory, which is sensitive and should be protected from unauthorized access.

The issue was addressed by improving memory handling and fixed in various Apple OS versions including iOS 18.7.9, iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5.

Mitigation Strategies

To mitigate this vulnerability, update your Apple devices to the fixed versions of the operating systems as soon as possible.

  • iOS 18.7.9 and iPadOS 18.7.9
  • iOS 26.5 and iPadOS 26.5
  • macOS Sequoia 15.7.7
  • macOS Sonoma 14.8.7
  • macOS Tahoe 26.5
  • tvOS 26.5
  • visionOS 26.5
  • watchOS 26.5

These updates include improved memory handling that addresses the vulnerability where an app may be able to disclose kernel memory.

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