CVE-2026-103567
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Buffer Over-Read in Windows Broadcast DVR User Service

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description
Buffer over-read in Windows Broadcast DVR User Service allows an authorized attacker to disclose information locally.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-14
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-103567
EUVD
EUVD-2026-100385

Affected Vendors & Products

Showing 11 associated CPEs
Vendor Product Version / Range
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 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-126 The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.

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Executive Summary

This is a buffer over-read vulnerability in the Windows Broadcast DVR User Service. An authorized attacker can exploit it to read memory outside the intended buffer, potentially accessing sensitive information on the local system.

Impact Analysis

An attacker could exploit this to access sensitive data stored in memory, such as passwords or encryption keys. Since it requires local access, physical or network access to the system is needed. The impact is limited to information disclosure.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft to patch the Broadcast DVR User Service vulnerability. Disable the Broadcast DVR User Service if not needed. Monitor Microsoft's security advisories for updates.

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