CVE-2026-21517
Undergoing Analysis Undergoing Analysis - In Progress
Improper Link Resolution in Windows App for Mac Elevates Privileges

Publication date: 2026-02-10

Last updated on: 2026-02-25

Assigner: Microsoft Corporation

Description
Improper link resolution before file access ('link following') in Windows App for Mac allows an authorized attacker to elevate privileges locally.
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Meta Information
Published
2026-02-10
Last Modified
2026-02-25
Generated
2026-06-16
AI Q&A
2026-02-10
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21517
EUVD
EUVD-2026-7308
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_app to 11.3.2 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-59 The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
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Executive Summary

This vulnerability involves improper link resolution before file access, also known as 'link following', in the Windows App for Mac. It allows an authorized attacker to elevate their privileges locally by exploiting how the application resolves links before accessing files.

Impact Analysis

An attacker who is already authorized on the system can exploit this vulnerability to gain higher privileges than they are supposed to have. This can lead to unauthorized access to sensitive data, modification of system files, or disruption of system operations.

Compliance Impact

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Detection Guidance

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