Windows Security Feature Bypass Vulnerability
CVE-2019-0732 is fixed in 38 products on 1 platform, first by KB4493470, released April 9, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
<p>A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard when Windows improperly handles calls to the LUAFV driver (luafv.sys). An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine.</p> <p>To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program.</p> <p>The update addresses the vulnerability by correcting how Windows validates User Mode Code Integrity policies.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.2906 | KB4493470 | Apr 9, 2019 |
| Windows 10 Version 1607 for x64-based Systems | 14393.2906 | KB4493470 | Apr 9, 2019 |
| Windows 10 Version 1703 for 32-bit Systems | 15063.1746 | KB4493474 | Apr 9, 2019 |
| Windows 10 Version 1703 for x64-based Systems | 15063.1746 | KB4493474 | Apr 9, 2019 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.1087 | KB4493441 | Apr 9, 2019 |
| Windows 10 Version 1709 for ARM64-based Systems | 16299.1087 | KB4493441 | Apr 9, 2019 |
| Windows 10 Version 1709 for x64-based Systems | 16299.1087 | KB4493441 | Apr 9, 2019 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.706 | KB4493464 | Apr 9, 2019 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.706 | KB4493464 | Apr 9, 2019 |
| Windows 10 Version 1803 for x64-based Systems | 17134.706 | KB4493464 | Apr 9, 2019 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.437 | KB4493509 | Apr 9, 2019 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.437 | KB4493509 | Apr 9, 2019 |
| Windows 10 Version 1809 for x64-based Systems | 17763.437 | KB4493509 | Apr 9, 2019 |
| Windows 10 for 32-bit Systems | 10240.18186 | KB4493475 | Apr 9, 2019 |
| Windows 10 for x64-based Systems | 10240.18186 | KB4493475 | Apr 9, 2019 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4493448 | Apr 9, 2019 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4493472 | Apr 9, 2019 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4493448 | Apr 9, 2019 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4493472 | Apr 9, 2019 | |
| Windows 8.1 for 32-bit systems | KB4493467 | Apr 9, 2019 | |
| Windows 8.1 for 32-bit systems | KB4493446 | Apr 9, 2019 | |
| Windows 8.1 for x64-based systems | KB4493467 | Apr 9, 2019 | |
| Windows 8.1 for x64-based systems | KB4493446 | Apr 9, 2019 | |
| Windows RT 8.1 | KB4493446 | Apr 9, 2019 | |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | KB4493448 | Apr 9, 2019 | |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | KB4493472 | Apr 9, 2019 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4493448 | Apr 9, 2019 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4493472 | Apr 9, 2019 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4493448 | Apr 9, 2019 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4493472 | Apr 9, 2019 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4493471 | Apr 9, 2019 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4493458 | Apr 9, 2019 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4493471 | Apr 9, 2019 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4493458 | Apr 9, 2019 | |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | KB4493471 | Apr 9, 2019 | |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | KB4493458 | Apr 9, 2019 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4493471 | Apr 9, 2019 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4493458 | Apr 9, 2019 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4493471 | Apr 9, 2019 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4493458 | Apr 9, 2019 | |
| Windows Server 2012 | KB4493451 | Apr 9, 2019 | |
| Windows Server 2012 | KB4493450 | Apr 9, 2019 | |
| Windows Server 2012 (Server Core installation) | KB4493451 | Apr 9, 2019 | |
| Windows Server 2012 (Server Core installation) | KB4493450 | Apr 9, 2019 | |
| Windows Server 2012 R2 | KB4493467 | Apr 9, 2019 | |
| Windows Server 2012 R2 | KB4493446 | Apr 9, 2019 | |
| Windows Server 2012 R2 (Server Core installation) | KB4493467 | Apr 9, 2019 | |
| Windows Server 2012 R2 (Server Core installation) | KB4493446 | Apr 9, 2019 | |
| Windows Server 2016 | 14393.2906 | KB4493470 | Apr 9, 2019 |
| Windows Server 2016 (Server Core installation) | 14393.2906 | KB4493470 | Apr 9, 2019 |
| Windows Server 2019 | 17763.437 | KB4493509 | Apr 9, 2019 |
| Windows Server 2019 (Server Core installation) | 17763.437 | KB4493509 | Apr 9, 2019 |
| Windows Server, version 1709 (Server Core Installation) | 16299.1087 | KB4493441 | Apr 9, 2019 |
| Windows Server, version 1803 (Server Core Installation) | 17134.706 | KB4493464 | Apr 9, 2019 |
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