Live › vulnerability › CVE-2024-38193
Go to dashboardA flaw in the Windows Ancillary Function Driver for WinSock (afd.sys) lets a local user escalate privileges. Successful exploitation gives the attacker SYSTEM rights on the machine.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft Windows | vendor | – | – |
| microsoft windows 10 1507 | vendor | < 10.0.10240.20751 | 10.0.10240.20751 |
| microsoft windows 10 1607 | vendor | < 10.0.14393.7259 | 10.0.14393.7259 |
| microsoft windows 10 1809 | vendor | < 10.0.17763.6189 | 10.0.17763.6189 |
| microsoft windows 10 21h2 | vendor | < 10.0.19044.4780 | 10.0.19044.4780 |
| microsoft windows 10 22h2 | vendor | < 10.0.19045.4780 | 10.0.19045.4780 |
| microsoft windows 11 21h2 | vendor | < 10.0.22000.3147 | 10.0.22000.3147 |
| microsoft windows 11 22h2 | vendor | < 10.0.22621.4037 | 10.0.22621.4037 |
| microsoft windows 11 23h2 | vendor | < 10.0.22631.4037 | 10.0.22631.4037 |
| microsoft windows 11 24h2 | vendor | < 10.0.26100.1457 | 10.0.26100.1457 |
| microsoft windows server 2008 | vendor | – | – |
| microsoft windows server 2008 | vendor | = r2 | – |
| microsoft windows server 2012 | vendor | < 6.2.9200.25031 | 6.2.9200.25031 |
| microsoft windows server 2012 | vendor | = r2 | – |
| microsoft windows server 2016 | vendor | < 10.0.14393.7259 | 10.0.14393.7259 |
| microsoft windows server 2019 | vendor | < 10.0.17763.6189 | 10.0.17763.6189 |
| microsoft windows server 2022 | vendor | < 10.0.20348.2655 | 10.0.20348.2655 |
| microsoft windows server 2022 23h2 | vendor | < 10.0.25398.1085 | 10.0.25398.1085 |
Unknown from the sources.
Apply the Microsoft security update for CVE-2024-38193 per vendor instructions; the sources do not name the KB or build number.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Microsoft Windows Ancillary Function Driver for WinSock contains an unspecified vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2024-38193")
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