CVE-2026-70090

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Use of Uninitialized Resource in Windows Netlogon Allows Local Information Disclosure

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

Use of uninitialized resource in Windows Netlogon allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-70090

EUVD

EUVD-2026-99155

Affected Vendors & Products

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

KEV

CWE ID	Description
CWE-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability involves the use of an uninitialized resource in Windows Netlogon. An authorized attacker can exploit this to disclose information locally on affected systems.

Detection Guidance

This vulnerability involves information disclosure via uninitialized resources in Windows Netlogon. Detection typically requires reviewing system logs for unusual Netlogon activity or applying Microsoft's security updates. No specific commands are provided in the available resources.

Impact Analysis

An attacker could gain access to sensitive information stored on your system. Since the vulnerability allows local disclosure, it may lead to unauthorized data exposure if exploited.

Compliance Impact

This vulnerability allows local information disclosure, which could lead to unauthorized access to sensitive data. For GDPR, this may result in violations of data confidentiality requirements. For HIPAA, it could compromise protected health information integrity.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft to patch the uninitialized resource issue in Netlogon. Ensure all affected systems listed in the CPEs are updated.

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