CVE-2026-102186

Analyzed Analyzed - Analysis Complete

Untrusted Pointer Dereference in Windows Network File System

Publication date: 2026-10-13

Last updated on: 2026-10-20

Assigner: Microsoft Corporation

Description

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

CVSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-20

Generated

2026-11-08

AI Q&A

2026-10-14

EPSS Evaluated

2026-11-07

NVD

CVE-2026-102186

EUVD

EUVD-2026-100343

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

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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