What is CVE-2023-21674?

CVE-2023-21674 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2023-21674 cover?

CVE-2023-21674 covers the following CVE IDs: CVE-2023-21674. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2023-21674?

CVE-2023-21674 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2023-21674?

CVE-2023-21674 affects 30 products, including: Windows 10 Version 1607 for 32-bit Systems; Windows 10 Version 1607 for x64-based Systems; Windows 10 Version 1809 for 32-bit Systems; Windows 10 Version 1809 for ARM64-based Systems; Windows 10 Version 1809 for x64-based Systems; and others — see the full list on the advisory page.

CVE-2023-21674HighCVSS 8.8

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

Vendor

Microsoft Security Response Center (MSRC)

Published

January 10, 2023

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2023-21674 →

📋 Description

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability? This vulnerability could lead to a browser sandbox escape.

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

🎯 Affected products30

Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 22H2 for 32-bit Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows 11 version 21H2 for ARM64-based Systems
Windows 11 version 21H2 for x64-based Systems
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows RT 8.1
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)

✅ Remediation

KB5022286 (Security Update) — fixed build 10.0.17763.3887 KB5022291 (Security Update) — fixed build 10.0.20348.1487 KB5022282 (Security Update) — fixed build 10.0.19042.2486 KB5022287 (Security Update) — fixed build 10.0.22000.1455 KB5022282 (Security Update) — fixed build 10.0.19044.2486 KB5022303 (Security Update) — fixed build 10.0.22621.1105 KB5022282 (Security Update) — fixed build 10.0.19045.2486 KB5022297 (Security Update) — fixed build 10.0.10240.19685 KB5022289 (Security Update) — fixed build 10.0.14393.5648 KB5022352 (Monthly Rollup) — fixed build 6.3.9600.20778 KB5022346 (Security Only) — fixed build 6.3.9600.20778

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products30

✅ Remediation

🔗 References (15)