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MicrosoftMS:CVE-2021-38634

HistorySep 14, 2021 - 7:00 a.m.

Microsoft Windows Update Client Elevation of Privilege Vulnerability

2021-09-1407:00:00

Microsoft

msrc.microsoft.com

microsoft

windows

update

client

privilege

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.1

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.7

Confidence

High

EPSS

Percentile

9.7%

JSON

Affected configurations

Vulners

Node

microsoftwindows_server\,_1803_\(server_core_installation\)Range<10.0.14393.4651

microsoftwindows_server_2016Range<10.0.14393.4651

microsoftwindows_10_x64-based_systemsRange<10.0.14393.4651

microsoftwindows_10_32-bit_systemsRange<10.0.14393.4651

microsoftwindows_10_x64-based_systemsRange<10.0.10240.19060

microsoftwindows_10_32-bit_systemsRange<10.0.10240.19060

microsoftwindows_server_version_20h2_naRange<10.0.19042.1237

microsoftwindows_10_20h2Range<10.0.19042.1237arm64

microsoftwindows_10_32-bit_systemsRange<10.0.19042.1237

microsoftwindows_10_x64-based_systemsRange<10.0.19042.1237

microsoftwindows_server_version_2004Range<10.0.19041.1237

microsoftwindows_10_2004_for_x64-based_systemsRange<10.0.19041.1237

microsoftwindows_10_2004_for_arm64-based_systemsRange<10.0.19041.1237

microsoftwindows_10_2004_for_32-bit_systemsRange<10.0.19041.1237

microsoftwindows_server\,_1803_\(server_core_installation\)Range<10.0.20348.230

microsoftwindows_server_2022Range<10.0.20348.230

microsoftwindows_10_32-bit_systemsRange<10.0.19043.1237

microsoftwindows_10_21h1Range<10.0.19043.1237arm64

microsoftwindows_10_x64-based_systemsRange<10.0.19043.1237

microsoftwindows_10_1909_for_arm64-based_systemsRange<10.0.18363.1801

microsoftwindows_10_1909_for_x64-based_systemsRange<10.0.18363.1801

microsoftwindows_10_1909_for_32-bit_systemsRange<10.0.18363.1801

microsoftwindows_server\,_1803_\(server_core_installation\)Range<10.0.17763.2183

microsoftwindows_server_2019Range<10.0.17763.2183

microsoftwindows_10_1809_for_arm64-based_systemsRange<10.0.17763.2183

microsoftwindows_10_1809_for_x64-based_systemsRange<10.0.17763.2183

microsoftwindows_10_1809_for_32-bit_systemsRange<10.0.17763.2183

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.1

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.7

Confidence

High

EPSS

Percentile

9.7%

JSON

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