<p>A security feature bypass vulnerability exists when Microsoft Windows fails to handle file creation permissions, which could allow an attacker to create files in a protected Unified Extensible Firmware Interface (UEFI) location.</p> <p>To exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.</p> <p>The security update addresses the vulnerability by correcting security feature behavior to enforce permissions.</p>
| Software | From | Fixed in |
|---|---|---|
| microsoft / windows_10 | 1607 | 1607.x |
| microsoft / windows_10 | 1709 | 1709.x |
| microsoft / windows_10 | 1803 | 1803.x |
| microsoft / windows_10 | 1809 | 1809.x |
| microsoft / windows_server_2016 | 1903 | 1903.x |
| microsoft / windows_10 | 1903 | 1903.x |
| microsoft / windows_server_2016 | 1909 | 1909.x |
| microsoft / windows_10 | 1909 | 1909.x |
| microsoft / windows_10 | 2004 | 2004.x |
| microsoft / windows_server_2016 | 2004 | 2004.x |