Vulnerability Database

300,445

Total vulnerabilities in the database

CVE-2019-0723

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.

  • Published: Aug 14, 2019
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-0723
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.8
  • AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5.5
  • AV:A/AC:L/Au:S/C:N/I:N/A:C

CWEs: