CVE-2026-28879
Received Received - Intake

Use-After-Free in Apple Web Content Causes Process Crash

Publication date: 2026-03-25

Last updated on: 2026-03-25

Assigner: Apple Inc.

Description
A use-after-free issue was addressed with improved memory management. 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. Processing maliciously crafted web content may lead to an unexpected process crash.

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Meta Information

Published
2026-03-25
Last Modified
2026-03-25
Generated
2026-07-06
AI Q&A
2026-03-25
EPSS Evaluated
2026-07-05
NVD
CVE-2026-28879
EUVD
EUVD-2026-15160

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-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This vulnerability is a use-after-free issue related to memory management. It occurs when the system processes maliciously crafted web content, which can lead to an unexpected process crash. The issue has been addressed and fixed in various Apple operating system versions including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.

Impact Analysis

The vulnerability can cause an unexpected process crash when malicious web content is processed. This could disrupt normal device operation and potentially lead to denial of service or instability in affected applications or systems.

Compliance Impact

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Detection Guidance

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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

These updates include improved memory management that addresses the use-after-free issue.

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