CVE-2026-28835
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| 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 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
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.