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Microsoft Windows Overlay Filter CVE-2021-26417 Information Disclosure Vulnerability

description-logoDescription

Information disclosure vulnerability in Windows Overlay Filter allows attackers to learn memory layout, exposing sensitive data.

affected-products-logoAffected Applications

Windows 10
Windows Server version 20H2 (Server Core Installation)
Windows Server version 2004 (Server Core installation)
Windows Server version 1909 (Server Core installation)
Windows Server 2019

Version Updates

Date Version Status Detail
2022-12-21 1.00365
Modified
 Windows 10,Windows Server version 20H2 (Server Core Installation),Windows Server version 2004 (Server Core installation),Windows Server version 1909 (Server Core installation),Windows Server 2019
2022-12-14 1.00363
Modified
 Windows 10,Windows Server version 1909 (Server Core installation),Windows Server version 2004 (Server Core installation),Windows Server version 20H2 (Server Core Installation),Windows Server 2019
2021-04-13 1.00238
New
 Windows 10,Windows Server, version 20H2 (Server Core Installation),Windows Server, version 2004 (Server Core installation),Windows Server, version 1909 (Server Core installation),Windows Server 2019

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26417
ID 67198
Created Apr 13, 2021
Description
Updated		 Jan 10, 2026
CVE ID
Risk black-background-circle-icon black-background-circle-icon black-background-circle-icon lightgray-background-circle-icon lightgray-background-circle-icon
Coverage FortiClient
OS Windows
Vendor Microsoft
Patch auto
Application Windows 10 , Windows Server version 20H2 (Server Core Installation) , Windows Server version 2004 (Server Core installation) , Windows Server version 1909 (Server Core installation) , Windows Server 2019