CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:A/AC:L/Au:S/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
45.0%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | windows_10 | 1809 | cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:* |
microsoft | windows_10 | 1903 | cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x64:* |
microsoft | windows_server_2016 | 1903 | cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* |
microsoft | windows_server_2019 | - | cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* |
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:A/AC:L/Au:S/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
45.0%