CVE-2026-28842
Received Received - Intake

Buffer Overflow in macOS Tahoe 26.4 Causes Memory Corruption

Vulnerability report for CVE-2026-28842, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-03-25

Last updated on: 2026-03-26

Assigner: Apple Inc.

Description

The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.

CVSS Scores

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Meta Information

Published
2026-03-25
Last Modified
2026-03-26
Generated
2026-07-06
AI Q&A
2026-03-25
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apple macos From 26.0 (inc) to 26.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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.

Attack-Flow Graph

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Mitigation Strategies

To mitigate this vulnerability, update your system to macOS Tahoe 26.4 or later, where the issue has been fixed with improved bounds checks.

Executive Summary

This vulnerability is a buffer overflow issue in macOS Tahoe that was addressed by improving bounds checks. A buffer overflow occurs when a program writes more data to a buffer than it can hold, which can lead to memory corruption and cause unexpected termination of applications.

Impact Analysis

The vulnerability can lead to memory corruption and unexpected termination of applications on affected systems. This could result in loss of data or disruption of normal operations.

Compliance Impact

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Detection Guidance

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