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mscveMicrosoftMS:CVE-2021-38638
HistorySep 14, 2021 - 7:00 a.m.

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

2021-09-1407:00:00
Microsoft
msrc.microsoft.com
33
windows
ancillary function driver
elevation of privilege
vulnerability
microsoft

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0

Percentile

9.5%

JSON

Affected configurations

Vulners
Node
microsoftwindows_server_2012Range<6.3.9600.20120r2
OR
microsoftwindows_server_2012Range<6.3.9600.20120r2
OR
microsoftwindows_server_2012Range<6.3.9600.20120r2
OR
microsoftwindows_server_2012Range<6.3.9600.20120r2
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<6.2.9200.23462
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<6.2.9200.23462
OR
microsoftwindows_server_2012Range<6.2.9200.23462
OR
microsoftwindows_server_2012Range<6.2.9200.23462
OR
microsoftwindows_server_2008_r2_x64-based_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_server_2008_r2_x64-based_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_server_2008_r2_x64-based_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_server_2008_r2_x64-based_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_server_2008_x64-based_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_x64-based_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_x64-based_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_x64-based_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_32-bit_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_32-bit_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_32-bit_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_server_2008_32-bit_systemsRange<6.0.6003.21218sp2
OR
microsoftwindows_rt_8.1Range<6.3.9600.20120
OR
microsoftwindows_8.1Range<6.3.9600.20120x64
OR
microsoftwindows_8.1Range<6.3.9600.20120x64
OR
microsoftwindows_10_32-bit_systemsRange<6.3.9600.20120
OR
microsoftwindows_10_32-bit_systemsRange<6.3.9600.20120
OR
microsoftwindows_7_x64-based_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_7_x64-based_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_7_32-bit_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_7_32-bit_systemsRange<6.1.7601.25712sp1
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<10.0.14393.4651
OR
microsoftwindows_server_2016Range<10.0.14393.4651
OR
microsoftwindows_10_x64-based_systemsRange<10.0.14393.4651
OR
microsoftwindows_10_32-bit_systemsRange<10.0.14393.4651
OR
microsoftwindows_10_x64-based_systemsRange<10.0.10240.19060
OR
microsoftwindows_10_32-bit_systemsRange<10.0.10240.19060
OR
microsoftwindows_server_version_20h2_naRange<10.0.19042.1237
OR
microsoftwindows_10_20h2Range<10.0.19042.1237arm64
OR
microsoftwindows_10_32-bit_systemsRange<10.0.19042.1237
OR
microsoftwindows_10_x64-based_systemsRange<10.0.19042.1237
OR
microsoftwindows_server_version_2004Range<10.0.19041.1237
OR
microsoftwindows_10_2004_for_x64-based_systemsRange<10.0.19041.1237
OR
microsoftwindows_10_2004_for_arm64-based_systemsRange<10.0.19041.1237
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<10.0.19041.1237
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<10.0.20348.230
OR
microsoftwindows_server_2022Range<10.0.20348.230
OR
microsoftwindows_10_32-bit_systemsRange<10.0.19043.1237
OR
microsoftwindows_10_21h1Range<10.0.19043.1237arm64
OR
microsoftwindows_10_x64-based_systemsRange<10.0.19043.1237
OR
microsoftwindows_10_1909_for_arm64-based_systemsRange<10.0.18363.1801
OR
microsoftwindows_10_1909_for_x64-based_systemsRange<10.0.18363.1801
OR
microsoftwindows_10_1909_for_32-bit_systemsRange<10.0.18363.1801
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<10.0.17763.2183
OR
microsoftwindows_server_2019Range<10.0.17763.2183
OR
microsoftwindows_10_1809_for_arm64-based_systemsRange<10.0.17763.2183
OR
microsoftwindows_10_1809_for_x64-based_systemsRange<10.0.17763.2183
OR
microsoftwindows_10_1809_for_32-bit_systemsRange<10.0.17763.2183

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CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0

Percentile

9.5%

JSON
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