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<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>
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2020-10 Cumulative Update for Windows Server, version 2004 for x64-based Systems (KB4579311)2020-10 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4580346)2020-10 Cumulative Update for Microsoft Windows 10, version 1709 (KB4580328)2020-10 Cumulative Update for Microsoft Windows 10, version 1607 (KB4580346)2020-10 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4577668)2020-10 Cumulative Update for Microsoft Windows 10, version 1507 (KB4580327)2020-10 Cumulative Update for Microsoft Windows 10, version 1903 (KB4577671)2020-10 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4577671)2020-10 Cumulative Update for Microsoft Windows 10, version 1909 (KB4577671)2020-10 Cumulative Update for Microsoft Windows 10, version 2004 (KB4579311)2020-10 Cumulative Update for Microsoft Windows 10, version 1803 (KB4580330)2020-10 Cumulative Update for Windows Server, version 1909 for x64-based Systems (KB4577671)2020-10 Cumulative Update for Microsoft Windows 10, version 1809 (KB4577668) | Oct 13, 2020 | Oct 13, 2020 |
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