CVE-2026-70227
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Out-of-Bounds Read in Windows Device Association Service

Vulnerability report for CVE-2026-70227, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows Device Association Service allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

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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
EUVD

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
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 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-125 The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

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Executive Summary

This is an out-of-bounds read vulnerability in the Windows Device Association Service. It allows an authorized attacker with local access to read memory outside the intended buffer, potentially exposing sensitive information.

Detection Guidance

This vulnerability is an out-of-bounds read in the Windows Device Association Service that allows local information disclosure. Detection typically requires checking for unusual service behavior or logs related to the Windows Device Association Service. Microsoft may provide detection guidance in their security updates or advisories.

Impact Analysis

An attacker could exploit this to access sensitive data on your system, such as passwords or personal files, if they already have local access. The impact is limited to information disclosure and does not allow code execution or privilege escalation.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR (if personal data is leaked) or HIPAA (if protected health information is compromised). Organizations must assess their exposure and apply mitigations to maintain compliance.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Device Association Service vulnerability. Monitor Microsoft's update guide for the official patch release.

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