Information Disclosure in Windows File Explorer Allows Local Data Exposure

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-13

Last Modified

2026-01-13

Generated

2026-07-06

AI Q&A

2026-01-14

EPSS Evaluated

2026-07-05

NVD

CVE-2026-20937

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_file_explorer	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability involves the exposure of sensitive information through Windows File Explorer. It allows an authorized attacker to locally disclose information that should be protected, meaning that someone with some level of access can gain access to sensitive data they are not supposed to see. [1]

Impact Analysis

The impact of this vulnerability is information disclosure. An authorized attacker could use this flaw to access sensitive information on a local system, potentially leading to privacy breaches or leakage of confidential data. [1]

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