CVE-2026-69971

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Incorrect Authorization in Windows Kernel-Mode Drivers Allows Local Information Disclosure

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-13

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-69971

EUVD

EUVD-2026-99125

Affected Vendors & Products

Vendor	Product	Version / Range
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 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-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability is an incorrect authorization issue in Windows Kernel-Mode Drivers. An authorized attacker can exploit it to disclose information locally on affected systems.

Detection Guidance

This vulnerability involves incorrect authorization in Windows Kernel-Mode Drivers, allowing local information disclosure. Detection typically requires reviewing system logs for unauthorized access attempts or unusual kernel driver activity. Use Event Viewer to check for security-related events in Windows logs. Commands like 'wevtutil qe System /q:"*[System[EventID=4663]]"' can help identify unauthorized file access attempts.

Impact Analysis

An attacker with local access could exploit this to read sensitive information from the system, potentially leading to data leaks or further attacks.

Compliance Impact

This vulnerability allows unauthorized local information disclosure due to incorrect authorization in Windows Kernel-Mode Drivers. Such information exposure could potentially violate data protection requirements under GDPR (Article 32) and HIPAA (Security Rule) by compromising confidentiality of sensitive data.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft Update to patch the incorrect authorization in Windows Kernel-Mode Drivers.

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