CVE-2026-102186
Undergoing Analysis Undergoing Analysis - In Progress

Untrusted Pointer Dereference in Windows Network File System

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description
Untrusted pointer dereference in Windows Network File System allows an authorized attacker to disclose information locally.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-16
Generated
2026-10-19
AI Q&A
2026-10-14
EPSS Evaluated
2026-10-18
NVD
CVE-2026-102186
EUVD
EUVD-2026-100343

Affected Vendors & Products

Showing 21 associated CPEs
Vendor Product Version / Range
Microsoft Windows 10 Version 1607 10.0.14393.0
Microsoft Windows 10 Version 1809 10.0.17763.0
Microsoft Windows 10 Version 21H2 10.0.19044.0
Microsoft Windows 10 Version 22H2 10.0.19045.0
Microsoft Windows 11 version 23H2 10.0.22631.0
Microsoft Windows 11 Version 23H2 10.0.22631.0
Microsoft Windows 11 Version 24H2 10.0.26100.0
Microsoft Windows 11 Version 25H2 10.0.26200.0
Microsoft Windows 11 version 26H1 10.0.28000.0
Microsoft Windows 11 Version 26H2 10.0.26300.0
Microsoft Windows Server 2012 6.2.9200.0
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0
Microsoft Windows Server 2012 R2 6.3.9600.0
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0
Microsoft Windows Server 2016 10.0.14393.0
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0
Microsoft Windows Server 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0
Microsoft Windows Server 2022 10.0.20348.0
Microsoft Windows Server 2025 10.0.26100.0
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-822 The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

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Executive Summary

This vulnerability is an untrusted pointer dereference in the Windows Network File System. It allows an authorized attacker to disclose information locally by exploiting improper handling of memory pointers.

Detection Guidance

This vulnerability involves an untrusted pointer dereference in Windows Network File System. Detection typically requires monitoring for unusual memory access patterns or crashes in the Windows Network File System service. Use Event Viewer to check for application or system crashes related to nfs.sys or similar components. Enable Windows Error Reporting to capture crash dumps for analysis.

Impact Analysis

An attacker could exploit this to access sensitive information stored on your system. Since it requires local authorization, it primarily affects users with some level of system access.

Compliance Impact

This vulnerability allows local information disclosure through untrusted pointer dereference in Windows Network File System. It may lead to unauthorized access to sensitive data, potentially violating GDPR's data protection principles and HIPAA's confidentiality requirements if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Network File System vulnerability. Monitor Microsoft's update guide for patches and install them promptly.

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