microsoft windows-server-2012 CVE-2023-21674 vulnerability in Microsoft Products
Published on January 10, 2023

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

Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft Windows Advanced Local Procedure Call (ALPC) contains an unspecified vulnerability that allows for privilege escalation.

The following remediation steps are recommended / required by January 31, 2023: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2023-21674 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 2.0 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2023-21674 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2023-21674

You can be notified by stack.watch whenever vulnerabilities like CVE-2023-21674 are published in these products:

Microsoft Windows Server 2012
 
Microsoft Windows Server 2016
 
Microsoft Windows Server 2019
 
Microsoft Windows Server 2022
 
Microsoft Windows 10
 
Microsoft Windows 11
 
Microsoft Windows Rt 8 1
 
Microsoft Windows 10 1507
 

What versions are vulnerable to CVE-2023-21674?