CVE-2023-21768— Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Quick assessment
Affected
Microsoft Windows Server 2022
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft Windows Ancillary Function Driver for WinSock是美国微软（Microsoft）公司的Winsock 的辅助功能驱动程序。 Microsoft Windows Ancillary Function Driver for WinSock存在安全漏洞。攻击者利用该漏洞可以提升权限。
Public Exploits 1
Metasploit · 1
cve_2023_21768_afd_lpe.rb [exploit]
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-21768
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
非可信指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Ancillary Function Driver for WinSock 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Ancillary Function Driver for WinSock是美国微软（Microsoft）公司的Winsock 的辅助功能驱动程序。 Microsoft Windows Ancillary Function Driver for WinSock存在安全漏洞。攻击者利用该漏洞可以提升权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows Server 2022 | 10.0.20348.0 ~ 10.0.20348.1487 | - |
|
| Microsoft | Windows 11 version 21H2 | 10.0.0 ~ 10.0.22000.1455 | - |
|
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 ~ 10.0.22621.1105 | - |
|
II. Public POCs for CVE-2023-21768
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | LPE exploit for CVE-2023-21768 | https://github.com/chompie1337/Windows_LPE_AFD_CVE-2023-21768 | POC Details |
| 2 | cve-2023-21768 | https://github.com/cl4ym0re/cve-2023-21768-compiled | POC Details |
| 3 | Using CVE-2023-21768 to manual map kernel mode driver | https://github.com/SamuelTulach/nullmap | POC Details |
| 4 | Windows_AFD_LPE_CVE-2023-21768 | https://github.com/Malwareman007/CVE-2023-21768 | POC Details |
| 5 | Windows 11 System Permission Elevation | https://github.com/HKxiaoli/Windows_AFD_LPE_CVE-2023-21768 | POC Details |
| 6 | CVE-2023-21768 Windows 11 22H2 系统本地提权 POC | https://github.com/CKevens/CVE-2023-21768-POC | POC Details |
| 7 | None | https://github.com/h1bAna/CVE-2023-21768 | POC Details |
| 8 | None | https://github.com/zoemurmure/CVE-2023-21768-AFD-for-WinSock-EoP-exploit | POC Details |
| 9 | recreating exp for cve-2023-21768. | https://github.com/Rosayxy/Recreate-cve-2023-21768 | POC Details |
| 10 | CVE-2023-21768 Proof of Concept | https://github.com/Ha0-Y/CVE-2023-21768 | POC Details |
| 11 | C# / .NET version of CVE-2023-21768 | https://github.com/xboxoneresearch/CVE-2023-21768-dotnet | POC Details |
| 12 | Using CVE-2023-21768 to manual map kernel mode driver | https://github.com/SultanPLX/SamuelTulach_nullmap | POC Details |
| 13 | CVE-2023-21768 Windows 11 22H2 系统本地提权 POC | https://github.com/3yujw7njai/CVE-2023-21768-POC | POC Details |
| 14 | CVE-2023-21768 Proof of Concept | https://github.com/ldrx30/CVE-2023-21768 | POC Details |
| 15 | Exploit implementation with IO Rings for CVE-2023-21768 | https://github.com/IlanDudnik/CVE-2023-21768 | POC Details |
| 16 | CVE-2023-21768 Windows 11 22H2 系统本地提权 POC | https://github.com/AiK1d/CVE-2023-21768-POC | POC Details |
| 17 | None | https://github.com/radoi-teodor/CVE-2023-21768-DSE-Bypass | POC Details |
| 18 | CVE-2023-21768 Windows 11 22H2 系统本地提权 POC | https://github.com/P4x1s/CVE-2023-21768-POC | POC Details |
| 19 | https://github.com/chompie1337/Windows_LPE_AFD_CVE-2023-21768 | https://github.com/Feede33/Windows-11-Exploit | POC Details |
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-21768
请登录查看更多情报信息。
Vendor Advisories for CVE-2023-21768 (1)
Same Patch Batch · Microsoft · 2023-01-10 · 98 CVEs total
| CVE-2023-21732 | 8.8 HIGH | Microsoft ODBC Driver Remote Code Execution Vulnerability |
| CVE-2023-21674 | 8.8 HIGH | Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability |
| CVE-2023-21676 | 8.8 HIGH | Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability |
| CVE-2023-21742 | 8.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2023-21744 | 8.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2023-21549 | 8.8 HIGH | Windows SMB Witness Service Elevation of Privilege Vulnerability |
| CVE-2023-21681 | 8.8 HIGH | Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability |
| CVE-2023-21546 | 8.1 HIGH | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability |
| CVE-2023-21548 | 8.1 HIGH | Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability |
| CVE-2023-21543 | 8.1 HIGH | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability |
| CVE-2023-21679 | 8.1 HIGH | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability |
| CVE-2023-21555 | 8.1 HIGH | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability |
| CVE-2023-21556 | 8.1 HIGH | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability |
| CVE-2023-21535 | 8.1 HIGH | Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability |
| CVE-2023-21762 | 8.0 HIGH | Microsoft Exchange Server Spoofing Vulnerability |
| CVE-2023-21745 | 8.0 HIGH | Microsoft Exchange Server Spoofing Vulnerability |
| CVE-2023-21747 | 7.8 HIGH | Windows Kernel Elevation of Privilege Vulnerability |
| CVE-2023-21746 | 7.8 HIGH | Windows NTLM Elevation of Privilege Vulnerability |
| CVE-2023-21678 | 7.8 HIGH | Windows Print Spooler Elevation of Privilege Vulnerability |
| CVE-2023-21737 | 7.8 HIGH | Microsoft Office Visio Remote Code Execution Vulnerability |
Showing top 20 of 98 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Windows Server 2022
-
CVE-2026-69858
Windows DNS Server Remote Code Execution Vulnerability -
CVE-2026-45648
Windows Active Directory Domain Services Remote Code Executi -
CVE-2025-47978
Windows Kerberos Denial of Service Vulnerability -
CVE-2025-29808
Windows Cryptographic Services Information Disclosure Vulner -
CVE-2024-43640
Windows Kernel-Mode Driver Elevation of Privilege Vulnerabil
Same vendor: Microsoft
-
CVE-2026-96940
Microsoft Exchange Server Elevation of Privilege Vulnerabili -
CVE-2026-100208
Microsoft Office Outlook Remote Code Execution Vulnerability -
CVE-2026-70125
Microsoft Office Outlook Remote Code Execution Vulnerability -
CVE-2026-88097
Microsoft Edge (Chromium-based) Elevation of Privilege Vulne -
CVE-2026-85887
M365 Copilot Information Disclosure Vulnerability
Same weakness: CWE-822
-
CVE-2026-97876
Bypass of GRUB lockdown restriction in Secure Boot mode via -
CVE-2026-103764
Mooncake transfer engine before 0.3.13 Unauthenticated Arbit -
CVE-2026-58007
Unchecked SDM mailbox response address enables EL3 secure-me -
CVE-2026-58006
Altera SoCFPGA BL31 Mailbox Output Pointer Validation Enable -
CVE-2026-91795
Foxit PDF Editor/Reader FileOpen Uninitialized Variable Remo
V. Comments for CVE-2023-21768
No comments yet