Firetruck

CVE-2021-40444

KEV · Ransomware
Updated Aug 10, 2026 · PUBLISHED
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Description

Microsoft MSHTML contains a unspecified vulnerability that allows for remote code execution.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Windows 10 Version 1507Microsoft / Windows 10 Version 1507>= 10.0.10240.0, < 10.0.10240.19060affected
Windows 10 Version 1607Microsoft / Windows 10 Version 1607>= 10.0.14393.0, < 10.0.14393.4651affected
Windows 10 Version 1809Microsoft / Windows 10 Version 1809>= 10.0.0, < 10.0.17763.2183affected
Windows 10 Version 1809Microsoft / Windows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.2183affected
Windows 10 Version 1909Microsoft / Windows 10 Version 1909>= 10.0.0, < 10.0.18363.1801affected
Windows 10 Version 2004Microsoft / Windows 10 Version 2004>= 10.0.0, < 10.0.19041.1237affected
Windows 10 Version 20H2Microsoft / Windows 10 Version 20H2>= 10.0.0, < 10.0.19042.1237affected
Windows 10 Version 21H1Microsoft / Windows 10 Version 21H1>= 10.0.0, < 10.0.19043.1237affected
Windows 7Microsoft / Windows 7>= 6.1.0, < 6.1.7601.25712affected
Windows 7 Service Pack 1Microsoft / Windows 7 Service Pack 1>= 6.1.0, < 6.1.7601.25712affected
Windows 8.1Microsoft / Windows 8.1>= 6.3.0, < 6.3.9600.20120affected
Windows Server 2008 R2 Service Pack 1Microsoft / Windows Server 2008 R2 Service Pack 1>= 6.1.7601.0, < 6.1.7601.25712affected
Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft / Windows Server 2008 R2 Service Pack 1 (Server Core installation)>= 6.1.7601.0, < 6.1.7601.25712affected
Windows Server 2008 Service Pack 2Microsoft / Windows Server 2008 Service Pack 2>= 6.0.6003.0, < 6.0.6003.21218affected
Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft / Windows Server 2008 Service Pack 2 (Server Core installation)>= 6.0.6003.0, < 6.0.6003.21218affected
Windows Server 2012Microsoft / Windows Server 2012>= 6.2.9200.0, < 6.2.9200.23462affected
Windows Server 2012 R2Microsoft / Windows Server 2012 R2>= 6.3.9600.0, < 6.3.9600.20120affected
Windows Server 2012 R2 (Server Core installation)Microsoft / Windows Server 2012 R2 (Server Core installation)>= 6.3.9600.0, < 6.3.9600.20120affected
Windows Server 2012 (Server Core installation)Microsoft / Windows Server 2012 (Server Core installation)>= 6.2.9200.0, < 6.2.9200.23462affected
Windows Server 2016Microsoft / Windows Server 2016>= 10.0.14393.0, < 10.0.14393.4651affected
Windows Server 2016 (Server Core installation)Microsoft / Windows Server 2016 (Server Core installation)>= 10.0.14393.0, < 10.0.14393.4651affected
Windows Server 2019Microsoft / Windows Server 2019>= 10.0.17763.0, < 10.0.17763.2183affected
Windows Server 2019 (Server Core installation)Microsoft / Windows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.2183affected
Windows Server 2022Microsoft / Windows Server 2022>= 10.0.20348.0, < 10.0.20348.230affected
Windows Server version 2004Microsoft / Windows Server version 2004>= 10.0.0, < 10.0.19041.1237affected
Windows Server version 20H2Microsoft / Windows Server version 20H2>= 10.0.0, < 10.0.19042.1237affected