high7.8Known exploited
CVE-2021-36955
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-03. Federal due date: 2021-11-17.
Apply updates per vendor instructions.
Impact
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1507 | before 10.0.10240.19060 |
| Microsoft | Windows 10 1607 | before 10.0.14393.4651 |
| Microsoft | Windows 10 1809 | before 10.0.17763.2183 |
| Microsoft | Windows 10 1909 | before 10.0.18363.1801 |
| Microsoft | Windows 10 2004 | before 10.0.19041.1237 |
| Microsoft | Windows 10 20h2 | before 10.0.19042.1237 |
| Microsoft | Windows 10 21h1 | before 10.0.19043.1237 |
| Microsoft | Windows 7 | All versions |
| Microsoft | Windows 8.1 | All versions |
| Microsoft | Windows Rt 8.1 | All versions |
| Microsoft | Windows Server 2004 | before 10.0.19041.1237 |
| Microsoft | Windows Server 2008 | All versions Version r2 |