CVE-2019-0723
Plain English Summary
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An attacker with a privileged account on a virtual machine can crash the host server by running a specially crafted application. This vulnerability relies on the attacker already having elevated access within the guest operating system.
Technical Description
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 Vector Analysis
Vector String
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:HExploit Resources
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Official References
Quick Information
Published
Aug 14, 2019
over 6 years ago
Last Modified
Feb 20, 2026
about 2 months ago
Vendor
microsoft
Product
windows 10
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