CVE-2021-38628
published 2021-09-15CVE-2021-38628: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.52%
42.3th percentile
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Affected
45 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1507 | >= 10.0.10240.0 < 10.0.10240.19060 | 10.0.10240.19060 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.4651 | 10.0.14393.4651 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.2183 | 10.0.17763.2183 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.2183 | 10.0.17763.2183 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.1801 | 10.0.18363.1801 |
| microsoft | windows_10_version_2004 | >= 10.0.0 < 10.0.19041.1237 | 10.0.19041.1237 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.1237 | 10.0.19042.1237 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1237 | 10.0.19043.1237 |
| microsoft | windows_7 | >= 6.1.0 < 6.1.7601.25712 | 6.1.7601.25712 |
| microsoft | windows_7_service_pack_1 | >= 6.1.0 < 6.1.7601.25712 | 6.1.7601.25712 |
| microsoft | windows_8.1 | >= 6.3.0 < 6.3.9600.20120 | 6.3.9600.20120 |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.25712 | 6.1.7601.25712 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.6003.0 < 6.0.6003.21218 | 6.0.6003.21218 |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.23462 | 6.2.9200.23462 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.20120 | 6.3.9600.20120 |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.4651 | 10.0.14393.4651 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
vendor_msrc7.8HIGH
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VulDB
Microsoft Windows up to Server 2022 Ancillary Function Driver for WinSock privileges management
vuldb·2026-08-13·CVSS 7.8
CVE-2021-38628 [HIGH] Microsoft Windows up to Server 2022 Ancillary Function Driver for WinSock privileges management
A vulnerability has been found in Microsoft Windows and classified as critical. This vulnerability affects unknown code of the component Ancillary Function Driver for WinSock. This manipulation causes improper privilege management.
This vulnerability is tracked as CVE-2021-38628. The attack is possible to be carried out remotely. No exploit exists.
It is recommended to apply a patch to fix this issue.
GHSA
GHSA-w6m7-956j-5f84: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38638
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-38628 [HIGH] CWE-269 GHSA-w6m7-956j-5f84: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38638
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38638.
GHSA
GHSA-wwhr-5q8q-3gmc: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38628
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-38638 [HIGH] CWE-269 GHSA-wwhr-5q8q-3gmc: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38628
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38628.
Microsoft
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
vendor_msrc·2021-09-14·CVSS 7.8
CVE-2021-38628 [HIGH] Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock: Windows Ancillary Function Driver for WinSock
Microsoft: Microsoft
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5005568
Reference: https://support.microsoft.com/help/5005568
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5005566
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5005565
Reference: https://support.microsoft.com/help/5005565
Reference: https://catalog.update.microsoft.com/v7/site/Se
No detection rules found.
No public exploits indexed.
2021-09-15
Published