CVE-2026-28986
Received Received - Intake
Race Condition in Apple iOS and macOS Leading to System Termination

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: Apple Inc.

Description
A race condition was addressed with additional validation. 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, watchOS 26.5. An app may be able to cause unexpected system termination.
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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-2026-28986
Affected Vendors & Products
Showing 7 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 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 a race condition issue that was addressed by adding additional validation. A race condition occurs when the behavior of software depends on the timing or sequence of uncontrollable events, which can lead to unexpected results.

In this case, the race condition could allow an app to cause unexpected system termination, meaning the system could crash or shut down unexpectedly due to the timing issue.

Impact Analysis

This vulnerability can impact users by allowing an app to cause unexpected system termination. This means that the affected devices could crash or shut down unexpectedly, potentially leading to data loss, disruption of services, or degraded user experience.

Mitigation Strategies

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

  • Update iOS devices to iOS 18.7.9 or iOS 26.5.
  • Update iPadOS devices to iPadOS 18.7.9 or iPadOS 26.5.
  • Update macOS devices to macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, or macOS Tahoe 26.5.
  • Update Apple TV devices to tvOS 26.5.
  • Update Apple Watch devices to watchOS 26.5.
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