CVE-2021-33742
Microsoft Windows MSHTML Platform Remote Code Execution Vulnerability
Published Jun 8, 2021 · updated Jun 16, 2026 · microsoft windows 10 1507
Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for remote code execution.
Timeline
Detection, updates, and resolution for this record.
Jun 8, 2021 · Catalog
Detected
Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for remote code execution.
Nov 3, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Nov 17, 2021 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for remote code execution.
Required action
Apply updates per vendor instructions.
CISA due date Nov 17, 2021
Affected
- cpe microsoft/windows 10 1507version unspecified
- cpe microsoft/windows 10 1607version unspecified
- cpe microsoft/windows 10 1809version unspecified
- cpe microsoft/windows 10 1909version unspecified
- cpe microsoft/windows 10 2004version unspecified
- cpe microsoft/windows 10 20h2version unspecified
- cpe microsoft/windows 10 21h1version unspecified
- cpe microsoft/windows 7version unspecified
- vendor Microsoft Windowsversion unspecified
Sources
- CISA KEVCVE-2021-33742
Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for remote code execution.
cisa.gov - CVE.orgCVE-2021-33742
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-33742
30-day exploitation probability 59.4%
first.org - NIST NVDCVE-2021-33742
Windows MSHTML Platform Remote Code Execution Vulnerability
nvd.nist.gov