Windows Hyper-V Remote Code Execution Vulnerability
CVE-2020-16891 is fixed in 25 products on 1 platform, first by KB4580346, released October 13, 2020. It is not reported as exploited. Patch Radar priority: Urgent.
<p>A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker could run a specially crafted application on a guest operating system that could cause the Hyper-V host operating system to execute arbitrary code.</p> <p>An attacker who successfully exploited the vulnerability could execute arbitrary code on the host operating system.</p> <p>The security update addresses the vulnerability by correcting how Hyper-V validates guest operating system user input.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for x64-based Systems | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows 10 Version 1709 for x64-based Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Windows 10 Version 1803 for x64-based Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Windows 10 Version 1809 for x64-based Systems | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows 10 Version 1903 for x64-based Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 1909 for x64-based Systems | KB4577671 | Oct 13, 2020 | |
| Windows 10 Version 2004 for x64-based Systems | 19041.572 | KB4579311 | Oct 13, 2020 |
| Windows 10 for x64-based Systems | 10240.18725 | KB4580327 | Oct 13, 2020 |
| Windows 7 for x64-based Systems Service Pack 1 | KB4580345 | Oct 13, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4580387 | Oct 13, 2020 | |
| Windows 8.1 for x64-based systems | KB4580358 | Oct 13, 2020 | |
| Windows 8.1 for x64-based systems | KB4580347 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580345 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580387 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4580345 | Oct 13, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4580387 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580378 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580385 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4580378 | Oct 13, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4580385 | Oct 13, 2020 | |
| Windows Server 2012 | KB4580382 | Oct 13, 2020 | |
| Windows Server 2012 | KB4580353 | Oct 13, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4580382 | Oct 13, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4580353 | Oct 13, 2020 | |
| Windows Server 2012 R2 | KB4580358 | Oct 13, 2020 | |
| Windows Server 2012 R2 | KB4580347 | Oct 13, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4580358 | Oct 13, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4580347 | Oct 13, 2020 | |
| Windows Server 2016 | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows Server 2016 (Server Core installation) | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Windows Server 2019 | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows Server 2019 (Server Core installation) | 17763.1518 | KB4577668 | Oct 13, 2020 |
| Windows Server, version 1903 (Server Core installation) | KB4577671 | Oct 13, 2020 | |
| Windows Server, version 1909 (Server Core installation) | KB4577671 | Oct 13, 2020 | |
| Windows Server, version 2004 (Server Core installation) | 19041.572 | KB4579311 | Oct 13, 2020 |
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