Hyper-V vSMB Remote Code Execution Vulnerability
CVE-2019-0786 is fixed in 13 products on 1 platform, first by KB4493441, released April 9, 2019. 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 vSMB packet data. An attacker who successfully exploited these vulnerabilities could execute arbitrary code on a target operating system.</p> <p>To exploit these vulnerabilities, an attacker running inside a virtual machine could run a specially crafted application that could cause the Hyper-V host operating system to execute arbitrary code.</p> <p>The update addresses the vulnerabilities by correcting how Windows Hyper-V validates vSMB packet data.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| 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 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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