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MicrosoftMS:CVE-2021-26443

HistoryNov 09, 2021 - 8:00 a.m.

Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability

2021-11-0908:00:00

Microsoft

msrc.microsoft.com

virtual machine bus

remote code execution

vulnerability

microsoft

CVSS2

7.7

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:S/C:C/I:C/A:C

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

AI Score

9.3

Confidence

High

EPSS

0.004

Percentile

72.1%

JSON

Affected configurations

Vulners

Node

microsoftwindows_11_21h2Range<10.0.22000.318

microsoftwindows_server_20h2Range<10.0.19041.1348

microsoftwindows_server_2004Range<10.0.19041.1348

microsoftwindows_10_1809Range<10.0.19041.1348

microsoftwindows_server_2022Range<10.0.20348.350

microsoftwindows_10_21h1Range<10.0.19043.1348

microsoftwindows_10_1909Range<10.0.18363.1916

microsoftwindows_server_2019Range<10.0.17763.2300

microsoftwindows_10_1809Range<10.0.17763.2300

VendorProductVersionCPE
microsoftwindows_11_21h2*cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
microsoftwindows_server_20h2*cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
microsoftwindows_server_2004*cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
microsoftwindows_10_1809*cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
microsoftwindows_server_2022*cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoftwindows_10_21h1*cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
microsoftwindows_10_1909*cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
microsoftwindows_server_2019*cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
microsoft	windows_11_21h2	*	cpe:2.3:o:microsoft:windows_11_21h2::::::::
microsoft	windows_server_20h2	*	cpe:2.3:o:microsoft:windows_server_20h2::::::::
microsoft	windows_server_2004	*	cpe:2.3:o:microsoft:windows_server_2004::::::::
microsoft	windows_10_1809	*	cpe:2.3:o:microsoft:windows_10_1809::::::::
microsoft	windows_server_2022	*	cpe:2.3:o:microsoft:windows_server_2022::::::::
microsoft	windows_10_21h1	*	cpe:2.3:o:microsoft:windows_10_21h1::::::::
microsoft	windows_10_1909	*	cpe:2.3:o:microsoft:windows_10_1909::::::::
microsoft	windows_server_2019	*	cpe:2.3:o:microsoft:windows_server_2019::::::::