A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash. To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash. The update addresses the vulnerability by modifying how virtual machines access the Hyper-V Network Switch.
CVSS Details
- CVSS 3.1 Base Score: 5.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2019-08 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4511553)2019-08 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4512508)2019-08 Cumulative Update for Microsoft Windows 10, version 1903 (KB4512508)2019-08 Cumulative Update for Microsoft Windows 10, version 1809 (KB4511553) | Aug 13, 2019 | Aug 13, 2019 |
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