CVE-2026-28886
Received Received - Intake
Null Pointer Dereference in Apple OSes Causes Denial-of-Service

Publication date: 2026-03-25

Last updated on: 2026-03-25

Assigner: Apple Inc.

Description
A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A user in a privileged network position may be able to cause a denial-of-service.
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Meta Information
Published
2026-03-25
Last Modified
2026-03-25
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-15
NVD
CVE-2026-28886
EUVD
EUVD-2026-15165
Affected Vendors & Products
Showing 10 associated CPEs
Vendor Product Version / Range
apple macos From 14.0 (inc) to 14.8.5 (exc)
apple macos From 15.0 (inc) to 15.7.5 (exc)
apple macos From 26.0 (inc) to 26.4 (exc)
apple ipados to 18.7.7 (exc)
apple ipados From 26.0 (inc) to 26.4 (exc)
apple iphone_os to 18.7.7 (exc)
apple iphone_os From 26.0 (inc) to 26.4 (exc)
apple tvos to 26.4 (exc)
apple visionos to 26.4 (exc)
apple watchos to 26.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a null pointer dereference issue that was addressed by improving input validation in affected Apple operating systems.

A null pointer dereference occurs when a program attempts to use a pointer that has a null value, which can lead to unexpected behavior or crashes.

In this case, a user in a privileged network position may exploit this vulnerability to cause a denial-of-service condition.

Impact Analysis

This vulnerability can impact you by allowing a user in a privileged network position to cause a denial-of-service (DoS) on affected Apple devices.

A denial-of-service can make the device or service unavailable, potentially disrupting normal operations.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

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

  • iOS 18.7.7 and iPadOS 18.7.7
  • iOS 26.4 and iPadOS 26.4
  • macOS Sequoia 15.7.5
  • macOS Sonoma 14.8.5
  • macOS Tahoe 26.4
  • tvOS 26.4
  • visionOS 26.4
  • watchOS 26.4

Applying these updates will address the null pointer dereference vulnerability and prevent potential denial-of-service attacks from privileged network users.

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