SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-0711

A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system.

MEDIUM 6.8EPSS 1.88%

Does this matter?

Lower severity and a low EPSS score (1.88%). Track it; it rarely justifies an emergency change on its own.

Description

A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system. 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. 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. The security update addresses the vulnerability by resolving a number of conditions where Hyper-V would fail to prevent a guest operating system from sending malicious requests.

CVSS 3.1
6.8 MEDIUMCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS
1.88% probability · 78th percentile
CISA KEV
Not listed
Weakness
CWE-20
Affected
microsoft/windows 10 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.