CVE-2026-28858
Received Received - Intake
Buffer Overflow in iOS/iPadOS Kernel Causes System Crash

Publication date: 2026-03-25

Last updated on: 2026-03-26

Assigner: Apple Inc.

Description
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
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Meta Information
Published
2026-03-25
Last Modified
2026-03-26
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-15
NVD
CVE-2026-28858
EUVD
EUVD-2026-15131
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
apple ipados to 26.4 (exc)
apple iphone_os to 26.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
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Executive Summary

This vulnerability is a buffer overflow issue that was addressed by improving bounds checking in the affected software.

A remote user could exploit this vulnerability to cause unexpected system termination or corrupt kernel memory.

Impact Analysis

Exploitation of this vulnerability may allow a remote attacker to cause the system to unexpectedly terminate or to corrupt kernel memory, potentially leading to system instability or crashes.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

The vulnerability is fixed in iOS 26.4 and iPadOS 26.4. To mitigate this vulnerability, you should update your devices to these versions or later.

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