CVE-2023-21674

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674	Patch Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674	Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21674

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1507::::::::
	cpe:2.3:o:microsoft:windows_10_1607::::::::
	cpe:2.3:o:microsoft:windows_10_1809::::::::
	cpe:2.3:o:microsoft:windows_10_20h2::::::::
	cpe:2.3:o:microsoft:windows_10_21h2::::::::
	cpe:2.3:o:microsoft:windows_10_22h2::::::::
	cpe:2.3:o:microsoft:windows_11_21h2::::::::
	cpe:2.3:o:microsoft:windows_11_22h2::::::::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::

History

22 Oct 2025, 00:18

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21674 -

21 Oct 2025, 20:19

Type	Values Removed	Values Added
References	~~{'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21674', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}~~

21 Oct 2025, 19:19

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21674 -

Information

Published : 2023-01-10 22:15

Updated : 2025-10-22 00:18

NVD link : CVE-2023-21674

Mitre link : CVE-2023-21674

CVE.ORG link : CVE-2023-21674

JSON object : View

Products Affected

microsoft

windows_10_22h2
windows_10_1607
windows_rt_8.1
windows_server_2016
windows_server_2022
windows_10_20h2
windows_11_21h2
windows_server_2012
windows_10_21h2
windows_11_22h2
windows_10_1507
windows_10_1809
windows_server_2019

CWE

CWE-416

Use After Free

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