CVE-2026-28835
Received Received - Intake
Use-After-Free in macOS SMB Mount Causes System 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 macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Mounting a maliciously crafted SMB network share may lead to system termination.
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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
2026-06-14
NVD
EUVD
Affected Vendors & Products
Showing 3 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)
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 in certain versions of macOS. Specifically, it occurs when mounting a maliciously crafted SMB network share, which can cause the system to terminate unexpectedly.

Impact Analysis

Exploiting this vulnerability by mounting a specially crafted SMB network share can lead to system termination, which may cause loss of data or disruption of services on affected macOS systems.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

To mitigate this vulnerability, update affected macOS versions to the fixed releases: macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.4.

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