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CVE-2021-33742

nvd nist
Published: Jun 8, 2021Modified: Oct 29, 2025CISA KEV

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD (Secondary)

Description

Windows MSHTML Platform Remote Code Execution Vulnerability

Affected (16)

Microsoft
14 products
Windows 10 1507
Windows 10 1607
Windows 10 1809
Windows 10 1909
Windows 10 2004
Windows 10 20h2
Windows 10 21h1
Windows 7
Windows 8.1
Windows Rt 8.1
Windows Server 2008
Windows Server 2012
Windows Server 2016
Windows Server 2019
Configuration A
16 vulnerable
Vulnerable SoftwareAffected Versions
Windows 10 1507
Before 10.0.10240.18967
Windows 10 1607
Before 10.0.14393.4467
Windows 10 1809
Before 10.0.17763.1999
Windows 10 1909
Before 10.0.18363.1621
Windows 10 2004
Before 10.0.19041.1052
Windows 10 20h2
Before 10.0.19042.1052
Windows 10 21h1
Before 10.0.19043.1052
Windows 7
All versions
Windows 8.1
All versions
Windows Rt 8.1
All versions
Microsoft
Windows Server 2008
Version r2 sp1
Windows Server 2008
Version sp2
Microsoft
Windows Server 2012
All versions
Windows Server 2012
Version r2
Windows Server 2016
Before 10.0.14393.4467
Windows Server 2019
Before 10.0.17763.1999

Related CWEs

CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

References (3)

Source: secure@microsoft.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.