Description
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | >= 10.0.0, < 10.0.17763.2366 |
| Microsoft | Windows Server 2019 | >= 10.0.0, < 10.0.17763.2366 |
| Microsoft | Windows Server 2019 (Server Core installation) | >= 10.0.0, < 10.0.17763.2366 |
| Microsoft | Windows 10 Version 1909 | >= 10.0.0, < 10.0.18363.1977 |
| Microsoft | Windows 10 Version 21H1 | >= 10.0.0, < 10.0.19043.1415 |
| Microsoft | Windows Server 2022 | >= 10.0.0, < 10.0.20348.405 |
| Microsoft | Windows 10 Version 2004 | >= 10.0.0, < 10.0.19041.1415 |
| Microsoft | Windows Server version 2004 | >= 10.0.0, < 10.0.19041.1415 |
| Microsoft | Windows 10 Version 20H2 | >= 10.0.0, < 10.0.19042.1415 |
| Microsoft | Windows Server version 20H2 | >= 10.0.0, < 10.0.19042.1415 |
| Microsoft | Windows 11 version 21H2 | >= 10.0.0, < 10.0.22000.376 |
| Microsoft | Windows 10 Version 21H2 | >= 10.0.0, < 10.0.19044.1415 |
| Microsoft | Windows 10 Version 1507 | >= 10.0.0, < 10.0.10240.19145 |
| Microsoft | Windows 10 Version 1607 | >= 10.0.0, < 10.0.14393.4825 |
| Microsoft | Windows Server 2016 | >= 10.0.0, < 10.0.14393.4825 |
| Microsoft | Windows Server 2016 (Server Core installation) | >= 10.0.0, < 10.0.14393.4825 |
| Microsoft | Windows 7 | >= 6.1.0, < 6.1.7601.25796 |
| Microsoft | Windows 7 Service Pack 1 | >= 6.1.0, < 6.1.7601.25796 |
| Microsoft | Windows 8.1 | >= 6.3.0, < 6.3.9600.20207 |
| Microsoft | Windows Server 2008 Service Pack 2 | >= 6.0.0, < 6.0.6003.21309 |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | >= 6.0.0, < 6.0.6003.21309 |
| Microsoft | Windows Server 2008 Service Pack 2 | >= 6.0.0, < 6.0.6003.21309 |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | >= 6.1.0, < 6.1.7601.25796 |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | >= 6.0.0, < 6.1.7601.25796 |
| Microsoft | Windows Server 2012 | >= 6.2.0, < 6.2.9200.23545; >= 6.2.0, < 6.2.9200.23540 |
| Microsoft | Windows Server 2012 (Server Core installation) | >= 6.2.0, < 6.2.9200.23545; >= 6.2.0, < 6.2.9200.23540 |
| Microsoft | Windows Server 2012 R2 | >= 6.3.0, < 6.3.9600.20207 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | >= 6.3.0, < 6.3.9600.20207 |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43226Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43226Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-43226US Government Resource
Timeline
- Published
- Dec 15, 2021
- Last modified
- Aug 22, 2026
- Added to CISA KEV
- Oct 6, 2025
- NVD status
- Analyzed