CVE-2023-21674

Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*SSVC

Descriptions

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

Vulnerabilidad de elevación de privilegios de llamada a procedimiento local avanzado (ALPC) de Windows.

Microsoft Windows Advanced Local Procedure Call (ALPC) contains an unspecified vulnerability that allows for privilege escalation.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2022-12-13 CVE Reserved
2023-01-10 CVE Published
2023-01-10 Exploited in Wild
2023-01-31 KEV Due Date
2024-04-05 First Exploit
2025-01-01 CVE Updated
2025-03-30 EPSS Updated

CWE

CWE-416: Use After Free

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/hd3s5aa/CVE-2023-21674	2024-04-05

URL	Date	SRC
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674	2024-06-28

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 10 1507 Search vendor "Microsoft" for product "Windows 10 1507"				< 10.0.10240.19685 Search vendor "Microsoft" for product "Windows 10 1507" and version " < 10.0.10240.19685"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 1607 Search vendor "Microsoft" for product "Windows 10 1607"				< 10.0.14393.5648 Search vendor "Microsoft" for product "Windows 10 1607" and version " < 10.0.14393.5648"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 1809 Search vendor "Microsoft" for product "Windows 10 1809"				< 10.0.17763.3887 Search vendor "Microsoft" for product "Windows 10 1809" and version " < 10.0.17763.3887"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 20h2 Search vendor "Microsoft" for product "Windows 10 20h2"				< 10.0.19042.2486 Search vendor "Microsoft" for product "Windows 10 20h2" and version " < 10.0.19042.2486"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 21h2 Search vendor "Microsoft" for product "Windows 10 21h2"				< 10.0.19044.2486 Search vendor "Microsoft" for product "Windows 10 21h2" and version " < 10.0.19044.2486"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 22h2 Search vendor "Microsoft" for product "Windows 10 22h2"				< 10.0.19045.2486 Search vendor "Microsoft" for product "Windows 10 22h2" and version " < 10.0.19045.2486"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 21h2 Search vendor "Microsoft" for product "Windows 11 21h2"				< 10.0.22000.1455 Search vendor "Microsoft" for product "Windows 11 21h2" and version " < 10.0.22000.1455"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 22h2 Search vendor "Microsoft" for product "Windows 11 22h2"				< 10.0.22621.1105 Search vendor "Microsoft" for product "Windows 11 22h2" and version " < 10.0.22621.1105"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Rt 8.1 Search vendor "Microsoft" for product "Windows Rt 8.1"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012"				r2 Search vendor "Microsoft" for product "Windows Server 2012" and version "r2"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016"				< 10.0.14393.5648 Search vendor "Microsoft" for product "Windows Server 2016" and version " < 10.0.14393.5648"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019"				< 10.0.17763.3887 Search vendor "Microsoft" for product "Windows Server 2019" and version " < 10.0.17763.3887"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2022 Search vendor "Microsoft" for product "Windows Server 2022"				< 10.0.20348.1487 Search vendor "Microsoft" for product "Windows Server 2022" and version " < 10.0.20348.1487"		-		Affected