CVE-2026-42907

Analyzed Analyzed - Analysis Complete

Windows Shell Information Disclosure Vuln

Publication date: 2026-06-09

Last updated on: 2026-06-11

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-09

Last Modified

2026-06-11

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-42907

EUVD

EUVD-2026-35596

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_10_1809	to 10.0.17763.8880 (exc)
microsoft	windows_10_1809	to 10.0.17763.8880 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_server_2019	to 10.0.17763.8880 (exc)
microsoft	windows_server_2022	to 10.0.20348.5256 (exc)
microsoft	windows_server_2025	to 10.0.26100.32995 (exc)

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 within the Windows Shell. It allows an authorized attacker to locally disclose information that should be protected from unauthorized access.

Impact Analysis

The impact of this vulnerability is information disclosure. An attacker with local authorized access can obtain sensitive information that they are not supposed to see, potentially leading to privacy breaches or further exploitation.

Compliance Impact

This vulnerability involves the exposure of sensitive information to an unauthorized actor through Windows Shell, which could potentially lead to unauthorized disclosure of personal or protected data.

Such exposure may impact compliance with standards and regulations like GDPR and HIPAA, which require the protection of sensitive information from unauthorized access or disclosure.

However, the provided information does not specify direct effects or compliance implications related to these regulations.

Mitigation Strategies

To mitigate this vulnerability, it is recommended to apply the security updates provided by Microsoft for Windows Shell as soon as they become available.

Since the vulnerability allows an authorized attacker to disclose information locally, limiting local access to trusted users and monitoring for unusual local activity can help reduce risk.

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