⚠ Actively exploited
Added to CISA KEV on 2024-08-13. Federal agencies required to patch by 2024-09-03. Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable..

CVE-2024-38193 — Use After Free in Microsoft Windows 10 Version 1507

CWE-416 — Use After Free12 documents9 sources
Severity
7.8HIGHNVD
EPSS
74.8%
top 1.13%
CISA KEV
KEV
Added 2024-08-13
Due 2024-09-03
Exploit
Exploited in wild
Active exploitation observed
Affected products
28
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+25 more
Timeline
PublishedAug 13
KEV addedAug 13
KEV dueSep 3
Latest updateMay 9
CISA Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages27 packages

▶NVDmicrosoft/windows< 6.2.9200.25031+5
▶NVDmicrosoft/windows_10_1507< 10.0.10240.20751
▶NVDmicrosoft/windows_10_1607< 10.0.14393.7259
▶NVDmicrosoft/windows_10_1809< 10.0.17763.6189
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.4780

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-82w9-g9wm-675r: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2024-08-13
▶
CVEList
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2024-08-13
▶
VulnCheck
Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability↗2024
▶

💥Exploits & PoCs

1
Exploit-DB
Microsoft Windows 11 Pro 23H2 - Ancillary Function Driver for WinSock Privilege Escalation↗2025-05-09
▶

📋Vendor Advisories

2
CISA
Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability↗2024-08-13
▶
Microsoft
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2024-08-13
▶

🕵️Threat Intelligence

2
Krebs
Microsoft Patch Tuesday, February 2025 Edition↗2025-02-12
▶
Bleepingcomputer
Windows driver zero-day exploited by Lazarus hackers to install rootkit↗2024-08-19
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CVE-2024-38193 — Use After Free in Microsoft | cvebase