CVE-2019-0723: Windows Hyper-V Denial of Service Vulnerability
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, aka 'Windows Hyper-V Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0714, CVE-2019-0715, CVE-2019-0717, CVE-2019-0718.
Other sources
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.
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Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2019-0723?
CVE-2019-0723 has been classified as a critical severity vulnerability.
How do I fix CVE-2019-0723?
To remediate CVE-2019-0723, ensure that all applicable security updates and patches from Microsoft are applied to the affected systems.
Which systems are affected by CVE-2019-0723?
CVE-2019-0723 affects Microsoft Windows 7, Windows 8.1, Windows 10 versions 1607 to 1903, and various Windows Server versions.
What is the impact of CVE-2019-0723?
CVE-2019-0723 can lead to a denial of service condition, impacting the availability of the Hyper-V Network Switch.
Who is vulnerable to CVE-2019-0723?
Any organization or individual using the specified versions of Microsoft Windows and Windows Server systems with Hyper-V enabled could be vulnerable to CVE-2019-0723.