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CVE-2023-21768

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

7.8 HighPublic exploit

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

65.4%Up 64.5 points since Jan 11, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.8

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Record
CVE-2023-21768
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weakness
CWE-822
Updated
2026-11-02
EUVDEUVD-2023-25935 7.8

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Record
EUVD-2023-25935
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Updated
2026-11-03
GitHub AdvisoriesGHSA-j69v-7pj3-vg67 7.8

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability.

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability.

Record
GHSA-j69v-7pj3-vg67
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
NVD 7.8

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Record
CVE-2023-21768
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-822
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
MetasploitAncillary Function Driver (AFD) for WinSock Elevation of Privilege2023-01-10
PoC in GitHubIlanDudnik/CVE-2023-217682024-12-30
PoC in GitHubMalwareman007/CVE-2023-217682023-03-13
PoC in GitHubP4x1s/CVE-2023-21768-POC2023-03-22
PoC in GitHubRosayxy/Recreate-cve-2023-217682023-10-02
PoC in GitHubSamuelTulach/nullmap2023-03-10
PoC in GitHubchompie1337/Windows_LPE_AFD_CVE-2023-217682023-03-07
PoC in GitHubcl4ym0re/cve-2023-21768-compiled2023-03-10
PoC in GitHubh1bAna/CVE-2023-217682023-04-05
PoC in GitHubivanovick1/Windows_AFD_LPE_CVE-2023-217682023-08-21
Show 5 moreShow less
Public exploits
SourceLinkDate
PoC in GitHubldrx30/CVE-2023-217682024-04-07
PoC in GitHubleandrofleury/CVE-2023-217682026-06-15
PoC in GitHubradoi-teodor/CVE-2023-21768-DSE-Bypass2025-08-25
PoC in GitHubxboxoneresearch/CVE-2023-21768-dotnet2024-05-15
PoC in GitHubzoemurmure/CVE-2023-21768-AFD-for-WinSock-EoP-exploit2023-04-20

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, Metasploit, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-21768 is a high vulnerability (CVSS 7.8) in Microsoft Windows 11 Version 21h2, published January 10, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 65.4%, the 99th percentile. No source names a fixed version.

References

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