CVE-2023-21768 - Vulnerability Details - OpenCVE

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.71808.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	Windows 11 Windows Server 2022

Configuration 1 [-]

OR	cpe:2.3:o:microsoft:windows_11:21h2::::::arm64:
	cpe:2.3:o:microsoft:windows_11:21h2::::::x64:
	cpe:2.3:o:microsoft:windows_11:22h2::::::arm64:
	cpe:2.3:o:microsoft:windows_11:22h2::::::x64:
	cpe:2.3:o:microsoft:windows_server_2022:-:::::::*

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21768

History

Wed, 16 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.73081}`	epss `{'score': 0.74979}`

Wed, 01 Jan 2025 00:45:00 +0000

Type	Values Removed	Values Added
CPEs	cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.1455::::::arm64: cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.1455::::::x64: cpe:2.3:o:microsoft:windows_11_22H2:10.0.22621.1105::::::arm64: cpe:2.3:o:microsoft:windows_11_22H2:10.0.22621.1105::::::x64: cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.1487:::::::*
Vendors & Products	Microsoft windows 11 21h2 Microsoft windows 11 22h2

Tue, 08 Oct 2024 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2023-01-10T00:00:00

Updated: 2025-01-01T00:36:09.440Z

Reserved: 2022-12-13T00:00:00

Link: CVE-2023-21768

Vulnrichment

Updated: 2024-08-02T09:51:50.242Z

NVD

Status : Modified

Published: 2023-01-10T22:15:19.367

Modified: 2024-11-21T07:43:36.690

Link: CVE-2023-21768

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-21768", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "dateUpdated": "2025-01-01T00:36:09.440Z", "dateReserved": "2022-12-13T00:00:00", "datePublished": "2023-01-10T00:00:00"}, "containers": {"cna": {"title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "datePublic": "2023-01-10T08:00:00+00:00", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.20348.0", "versionEndExcluding": "10.0.20348.1487"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:x64:*", "versionStartIncluding": "10.0.0", "versionEndExcluding": "10.0.22000.1455"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:*", "versionStartIncluding": "10.0.22621.0", "versionEndExcluding": "10.0.22621.1105"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Windows Server 2022", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.20348.0", "lessThan": "10.0.20348.1487", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 11 version 21H2", "platforms": ["x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.22000.1455", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 11 version 22H2", "platforms": ["ARM64-based Systems", "x64-based Systems"], "versions": [{"version": "10.0.22621.0", "lessThan": "10.0.22621.1105", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-822: Untrusted Pointer Dereference", "lang": "en-US", "type": "CWE", "cweId": "CWE-822"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2025-01-01T00:36:09.440Z"}, "references": [{"name": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "tags": ["vendor-advisory"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21768"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T09:51:50.242Z"}, "title": "CVE Program Container", "references": [{"name": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "x_transferred"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21768"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-10-08T17:58:46.346936Z", "id": "CVE-2023-21768", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-08T17:59:00.517Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21768", "name": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T09:51:50.242Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-21768", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-10-08T17:58:46.346936Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-08T17:58:56.840Z"}}], "cna": {"title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}, "scenarios": [{"lang": "en-US", "value": "GENERAL"}]}], "affected": [{"vendor": "Microsoft", "product": "Windows Server 2022", "versions": [{"status": "affected", "version": "10.0.20348.0", "lessThan": "10.0.20348.1487", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows 11 version 21H2", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.22000.1455", "versionType": "custom"}], "platforms": ["x64-based Systems", "ARM64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows 11 version 22H2", "versions": [{"status": "affected", "version": "10.0.22621.0", "lessThan": "10.0.22621.1105", "versionType": "custom"}], "platforms": ["ARM64-based Systems", "x64-based Systems"]}], "datePublic": "2023-01-10T08:00:00+00:00", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21768", "name": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "tags": ["vendor-advisory"]}], "descriptions": [{"lang": "en-US", "value": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability"}], "problemTypes": [{"descriptions": [{"lang": "en-US", "type": "CWE", "cweId": "CWE-822", "description": "CWE-822: Untrusted Pointer Dereference"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.20348.1487", "versionStartIncluding": "10.0.20348.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "10.0.22000.1455", "versionStartIncluding": "10.0.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:*", "vulnerable": true, "versionEndExcluding": "10.0.22621.1105", "versionStartIncluding": "10.0.22621.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2025-01-01T00:36:09.440Z"}}}, "cveMetadata": {"cveId": "CVE-2023-21768", "state": "PUBLISHED", "dateUpdated": "2025-01-01T00:36:09.440Z", "dateReserved": "2022-12-13T00:00:00", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "datePublished": "2023-01-10T00:00:00", "assignerShortName": "microsoft"}, "dataVersion": "5.1"}