CVE-2026-50437
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Out-of-Bounds Read in Windows DWM Core Library

Vulnerability report for CVE-2026-50437, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-14

Last updated on: 2026-07-22

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-07-14
Last Modified
2026-07-22
Generated
2026-08-04
AI Q&A
2026-07-15
EPSS Evaluated
2026-08-02
NVD
EUVD

Affected Vendors & Products

Showing 20 associated CPEs
Vendor Product Version / Range
microsoft windows_11_26h1 to 10.0.28000.2269 (exc)
microsoft windows_10_1607 to 10.0.14393.9339 (exc)
microsoft windows_10_1607 to 10.0.14393.9339 (exc)
microsoft windows_10_1809 to 10.0.17763.9020 (exc)
microsoft windows_10_1809 to 10.0.17763.9020 (exc)
microsoft windows_server_2016 to 10.0.14393.9339 (exc)
microsoft windows_server_2019 to 10.0.17763.9020 (exc)
microsoft windows_server_2022 to 10.0.20348.5386 (exc)
microsoft windows_server_2025 to 10.0.26100.33158 (exc)
microsoft windows_11_26h1 to 10.0.28000.2525 (exc)
microsoft windows_11_24h2 to 10.0.26100.8875 (exc)
microsoft windows_11_24h2 to 10.0.26100.8875 (exc)
microsoft windows_10_21h2 to 10.0.19044.7548 (exc)
microsoft windows_10_21h2 to 10.0.19044.7548 (exc)
microsoft windows_10_21h2 to 10.0.19044.7548 (exc)
microsoft windows_10_22h2 to 10.0.19045.7548 (exc)
microsoft windows_10_22h2 to 10.0.19045.7548 (exc)
microsoft windows_10_22h2 to 10.0.19045.7548 (exc)
microsoft windows_11_25h2 to 10.0.26200.8875 (exc)
microsoft windows_11_25h2 to 10.0.26200.8875 (exc)

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 Desktop Window Manager (DWM) Core Library. It allows an authorized local attacker to read memory outside the intended buffer, potentially exposing sensitive information.

Impact Analysis

An attacker with local access could exploit this to read sensitive data from memory, such as passwords or encryption keys. This could lead to further attacks or unauthorized access to system information.

Compliance Impact

This vulnerability could lead to unauthorized disclosure of personal or sensitive data, potentially violating GDPR or HIPAA requirements for data protection and confidentiality.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows DWM Core Library vulnerability. Monitor the Microsoft Update Guide for the official patch release.

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