Description
Windows MSHTML Platform Remote Code Execution Vulnerability
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | >= 10.0.0, < 10.0.17763.1999 |
| Microsoft | Windows Server 2019 | >= 10.0.0, < 10.0.17763.1999 |
| Microsoft | Windows 10 Version 1909 | >= 10.0.0, < 10.0.18363.1621 |
| Microsoft | Windows 10 Version 21H1 | >= 10.0.0, < 10.0.19043.1052 |
| Microsoft | Windows 10 Version 2004 | >= 10.0.0, < 10.0.19041.1052 |
| Microsoft | Windows 10 Version 20H2 | >= 10.0.0, < 10.0.19042.1052 |
| Microsoft | Windows 10 Version 1507 | >= 10.0.0, < 10.0.10240.18967 |
| Microsoft | Windows 10 Version 1607 | >= 10.0.0, < 10.0.14393.4467 |
| Microsoft | Windows Server 2016 | >= 10.0.0, < 10.0.14393.4467 |
| Microsoft | Windows 7 | >= 6.1.0, < 6.1.7601.25632; >= 6.1.0, < publication |
| Microsoft | Windows 7 Service Pack 1 | >= 6.1.0, < 6.1.7601.25632; >= 6.1.0, < publication |
| Microsoft | Windows 8.1 | >= 6.3.0, < 6.3.9600.20045; >= 6.3.0, < 1.0.0.0 |
| Microsoft | Windows Server 2008 Service Pack 2 | >= 6.0.0, < 6.0.6003.21137; >= 6.0.0, < publication |
| Microsoft | Windows Server 2008 Service Pack 2 | >= 6.0.0, < 6.0.6003.21137; >= 6.0.0, < publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | >= 6.1.0, < 6.1.7601.25632; >= 6.1.0, < publication |
| Microsoft | Windows Server 2012 | >= 6.2.0, < 6.2.9200.23372; >= 6.2.0, < 1.0.0.0 |
| Microsoft | Windows Server 2012 R2 | >= 6.3.0, < 6.3.9600.20045; >= 6.3.0, < 1.0.0.0 |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33742US Government Resource
Timeline
- Published
- Jun 8, 2021
- Last modified
- Jun 17, 2026
- Added to CISA KEV
- Nov 3, 2021
- NVD status
- Analyzed