CVE-2026-42837
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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-2026-42837
EUVD
EUVD-2026-35591
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_projected_file_system_filter_driver *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended 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 boundaries, which can lead to unexpected behavior.

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

Impact Analysis

The vulnerability can impact you by allowing an authorized attacker to elevate their privileges on your system. This means the attacker could gain higher-level access than originally permitted, potentially leading to unauthorized actions, data compromise, or system control.

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