CVE-2023-21674

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

10/01/2023

Last modified:

07/03/2025

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:microsoft:windows_10_1507::::::::		10.0.10240.19685 (excluding)
cpe:2.3:o:microsoft:windows_10_1607::::::::		10.0.14393.5648 (excluding)
cpe:2.3:o:microsoft:windows_10_1809::::::::		10.0.17763.3887 (excluding)
cpe:2.3:o:microsoft:windows_10_20h2::::::::		10.0.19042.2486 (excluding)
cpe:2.3:o:microsoft:windows_10_21h2::::::::		10.0.19044.2486 (excluding)
cpe:2.3:o:microsoft:windows_10_22h2::::::::		10.0.19045.2486 (excluding)
cpe:2.3:o:microsoft:windows_11_21h2::::::::		10.0.22000.1455 (excluding)
cpe:2.3:o:microsoft:windows_11_22h2::::::::		10.0.22621.1105 (excluding)
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::::::::		10.0.14393.5648 (excluding)
cpe:2.3:o:microsoft:windows_server_2019::::::::		10.0.17763.3887 (excluding)
cpe:2.3:o:microsoft:windows_server_2022::::::::		10.0.20348.1487 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-21674

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools