CVE-2020-1243

A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a 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. The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243	Patch Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10:1607::::::x64:
	cpe:2.3:o:microsoft:windows_10:1709::::::x64:
	cpe:2.3:o:microsoft:windows_10:1803::::::x64:
	cpe:2.3:o:microsoft:windows_10:1809::::::x64:
	cpe:2.3:o:microsoft:windows_10:1903::::::x64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x64:
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1903:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1909:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

History

21 Nov 2024, 05:10

Type	Values Removed	Values Added
References	~~() https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243 - Patch, Vendor Advisory~~	() https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243 - Patch, Vendor Advisory

31 Dec 2023, 20:16

Type	Values Removed	Values Added
Summary	A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a 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.The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests., aka 'Windows Hyper-V Denial of Service Vulnerability'.	<p>A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.</p> <p>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.</p> <p>The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.</p>

Information

Published : 2020-10-16 23:15

Updated : 2024-11-21 05:10

NVD link : CVE-2020-1243

Mitre link : CVE-2020-1243

CVE.ORG link : CVE-2020-1243

JSON object : View

Products Affected

microsoft

windows_server_2019
windows_10
windows_server_2016

CWE

NVD-CWE-noinfo

7.8 /10