CVE-2026-28933

Received Received - Intake

Use-After-Free in macOS Sequoia

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-28933

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_sequoia	15.7.8
apple	macos_sonoma	14.8.8
apple	macos_tahoe	26.6

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a use-after-free issue caused by improper memory management. It occurs when a program continues to use memory after it has been freed, potentially leading to crashes or unexpected behavior. The issue was addressed in specific macOS versions to prevent system termination.

Detection Guidance

This vulnerability is specific to Apple macOS versions and requires checking the installed macOS version. Use the command 'sw_vers' in Terminal to verify your macOS version. Compare the output against the fixed versions: macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6.

Impact Analysis

An attacker could exploit this flaw to cause an app to crash or terminate unexpectedly, potentially disrupting system operations. This may lead to data loss or denial of service if critical applications are affected.

Mitigation Strategies

Update your macOS to the latest patched version immediately: macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6. This can be done via System Preferences > Software Update. If updating is not possible, avoid installing untrusted applications and restrict app permissions.

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