CVE-2026-42828
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Buffer Over-Read in Windows Projected File System Filter Driver

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-42828
EUVD
EUVD-2026-35533
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_projected_file_system_filter_driver *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-126 The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
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Executive Summary

This vulnerability is a buffer over-read in the Windows Projected File System Filter Driver. It allows an authorized attacker to read beyond the intended buffer limits, which can lead to unexpected behavior.

Exploiting this flaw enables the attacker to elevate their privileges locally on the affected system.

Impact Analysis

The vulnerability can allow an authorized attacker to elevate their privileges on the affected Windows system.

This means the attacker could gain higher-level access than intended, potentially leading to full control over the system.

Such privilege escalation can compromise system integrity, confidentiality, and availability.

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