CVE-2021-33742

Windows MSHTML Platform Remote Code Execution Vulnerability

State: Published
Severity: 7.5 High
Published: Jun 8, 2021
Updated: Oct 21, 2025
Reserved: May 28, 2021

Description

Windows MSHTML Platform Remote Code Execution Vulnerability

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C	microsoft

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
Windows 10 Version 1809Microsoft	10.0.0 to before 10.0.17763.1999Affected
Windows Server 2019Microsoft	10.0.0 to before 10.0.17763.1999Affected
Windows 10 Version 1909Microsoft	10.0.0 to before 10.0.18363.1621Affected
Windows 10 Version 21H1Microsoft	10.0.0 to before 10.0.19043.1052Affected
Windows 10 Version 2004Microsoft	10.0.0 to before 10.0.19041.1052Affected
Windows 10 Version 20H2Microsoft	10.0.0 to before 10.0.19042.1052Affected
Windows 10 Version 1507Microsoft	10.0.0 to before 10.0.10240.18967Affected
Windows 10 Version 1607Microsoft	10.0.0 to before 10.0.14393.4467Affected
Windows Server 2016Microsoft	10.0.0 to before 10.0.14393.4467Affected
Windows 7Microsoft	6.1.0 to before 6.1.7601.25632Affected 6.1.0 to before publicationAffected
Windows 7 Service Pack 1Microsoft	6.1.0 to before 6.1.7601.25632Affected 6.1.0 to before publicationAffected
Windows 8.1Microsoft	6.3.0 to before 6.3.9600.20045Affected 6.3.0 to before 1.0.0.0Affected
Windows Server 2008 Service Pack 2Microsoft	6.0.0 to before 6.0.6003.21137Affected 6.0.0 to before publicationAffected
Windows Server 2008 Service Pack 2Microsoft	6.0.0 to before 6.0.6003.21137Affected 6.0.0 to before publicationAffected
Windows Server 2008 R2 Service Pack 1Microsoft	6.1.0 to before 6.1.7601.25632Affected 6.1.0 to before publicationAffected
Windows Server 2012Microsoft	6.2.0 to before 6.2.9200.23372Affected 6.2.0 to before 1.0.0.0Affected
Windows Server 2012 R2Microsoft	6.3.0 to before 6.3.9600.20045Affected 6.3.0 to before 1.0.0.0Affected

References

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