CVE-2024-38193MicrosoftOperating systemsAugust 13, 2024

Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability

High 7.8Actively exploited

Description

Microsoft Windows Ancillary Function Driver for WinSock contains an unspecified vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Details

Vendor
Microsoft
Product
Windows
CVE
CVE-2024-38193
Affected versions
Windows 11 Version 24H2 10.0: from 10.0.26100.0 to 10.0.26100.1457 (excluded) — fixed in 10.0.26100.1457
Windows 10 Version 1809 10.0: from 10.0.17763.0 to 10.0.17763.6189 (excluded) — fixed in 10.0.17763.6189
Windows Server 2019 10.0: from 10.0.17763.0 to 10.0.17763.6189 (excluded) — fixed in 10.0.17763.6189
Windows Server 2019 (Server Core installation) 10.0: from 10.0.17763.0 to 10.0.17763.6189 (excluded) — fixed in 10.0.17763.6189
Windows Server 2022 10.0: from 10.0.20348.0 to 10.0.20348.2655 (excluded) — fixed in 10.0.20348.2655
Windows 11 version 21H2 10.0: from 10.0.0 to 10.0.22000.3147 (excluded) — fixed in 10.0.22000.3147
Windows 10 Version 21H2 10.0: from 10.0.19043.0 to 10.0.19044.4780 (excluded) — fixed in 10.0.19044.4780
Windows 11 version 22H2 10.0: from 10.0.22621.0 to 10.0.22621.4037 (excluded) — fixed in 10.0.22621.4037
Windows 10 Version 22H2 10.0: from 10.0.19045.0 to 10.0.19045.4780 (excluded) — fixed in 10.0.19045.4780
Windows 11 version 22H3 10.0: from 10.0.22631.0 to 10.0.22631.4037 (excluded) — fixed in 10.0.22631.4037
Windows 11 Version 23H2 10.0: from 10.0.22631.0 to 10.0.22631.4037 (excluded) — fixed in 10.0.22631.4037
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0: from 10.0.25398.0 to 10.0.25398.1085 (excluded) — fixed in 10.0.25398.1085
Windows 10 Version 1507 10.0: from 10.0.10240.0 to 10.0.10240.20751 (excluded) — fixed in 10.0.10240.20751
Windows 10 Version 1607 10.0: from 10.0.14393.0 to 10.0.14393.7259 (excluded) — fixed in 10.0.14393.7259
Windows Server 2016 10.0: from 10.0.14393.0 to 10.0.14393.7259 (excluded) — fixed in 10.0.14393.7259
Windows Server 2016 (Server Core installation) 10.0: from 10.0.14393.0 to 10.0.14393.7259 (excluded) — fixed in 10.0.14393.7259
Windows Server 2008 Service Pack 2 6.0: from 6.0.6003.0 to 6.0.6003.22825 (excluded) — fixed in 6.0.6003.22825
Windows Server 2008 Service Pack 2 (Server Core installation 6.0: from 6.0.6003.0 to 6.0.6003.22825 (excluded) — fixed in 6.0.6003.22825
Windows Server 2008 Service Pack 2 6.0: from 6.0.6003.0 to 6.0.6003.22825 (excluded) — fixed in 6.0.6003.22825
Windows Server 2008 R2 Service Pack 1 6.1: from 6.1.7601.0 to 6.1.7601.27277 (excluded) — fixed in 6.1.7601.27277
Windows Server 2008 R2 Service Pack 1 (Server Core installat 6.1: from 6.1.7601.0 to 6.1.7601.27277 (excluded) — fixed in 6.1.7601.27277
Windows Server 2012 6.2: from 6.2.9200.0 to 6.2.9200.25031 (excluded) — fixed in 6.2.9200.25031
Windows Server 2012 (Server Core installation) 6.2: from 6.2.9200.0 to 6.2.9200.25031 (excluded) — fixed in 6.2.9200.25031
Windows Server 2012 R2 6.3: from 6.3.9600.0 to 6.3.9600.22134 (excluded) — fixed in 6.3.9600.22134
Windows Server 2012 R2 (Server Core installation) 6.3: from 6.3.9600.0 to 6.3.9600.22134 (excluded) — fixed in 6.3.9600.22134 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
7.8
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
September 3, 2024 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
August 13, 2024

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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