CVE-2022-21887— Win32k Elevation of Privilege Vulnerability
Quick assessment
Affected
Microsoft Windows 11 version 21H2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft Win32k是美国微软（Microsoft）公司的一个用于Windows多用户管理的系统文件。 Microsoft Windows Win32K存在安全漏洞。以下产品和版本受到影响：Windows 11 for x64-based Systems,Windows 11 for ARM64-based Systems。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2022-21887
Vulnerability Information
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Vulnerability Title
Win32k Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Win32k Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Win32k 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Win32k是美国微软（Microsoft）公司的一个用于Windows多用户管理的系统文件。 Microsoft Windows Win32K存在安全漏洞。以下产品和版本受到影响：Windows 11 for x64-based Systems,Windows 11 for ARM64-based Systems。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows 11 version 21H2 | 10.0.0 ~ 10.0.22000.434 | - |
|
II. Public POCs for CVE-2022-21887
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2022-21887 (1)
Same Patch Batch · Microsoft · 2022-01-11 · 100 CVEs total
| CVE-2022-21907 | 9.8 CRITICAL | HTTP Protocol Stack Remote Code Execution Vulnerability |
| CVE-2022-21849 | 9.8 CRITICAL | Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerabilit |
| CVE-2022-21901 | 9.0 CRITICAL | Windows Hyper-V Elevation of Privilege Vulnerability |
| CVE-2022-21855 | 9.0 CRITICAL | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2022-21846 | 9.0 CRITICAL | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2022-21969 | 9.0 CRITICAL | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2022-21920 | 8.8 HIGH | Windows Kerberos Elevation of Privilege Vulnerability |
| CVE-2022-21840 | 8.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2022-21922 | 8.8 HIGH | Remote Procedure Call Runtime Remote Code Execution Vulnerability |
| CVE-2022-21850 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2022-21851 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2022-21857 | 8.8 HIGH | Active Directory Domain Services Elevation of Privilege Vulnerability |
| CVE-2022-21837 | 8.3 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2022-21893 | 8.0 HIGH | Remote Desktop Protocol Remote Code Execution Vulnerability |
| CVE-2022-21897 | 7.8 HIGH | Windows Common Log File System Driver Elevation of Privilege Vulnerability |
| CVE-2022-21914 | 7.8 HIGH | Windows Remote Access Connection Manager Elevation of Privilege Vulnerability |
| CVE-2022-21908 | 7.8 HIGH | Windows Installer Elevation of Privilege Vulnerability |
| CVE-2022-21910 | 7.8 HIGH | Microsoft Cluster Port Driver Elevation of Privilege Vulnerability |
| CVE-2022-21912 | 7.8 HIGH | DirectX Graphics Kernel Remote Code Execution Vulnerability |
| CVE-2022-21917 | 7.8 HIGH | HEVC Video Extensions Remote Code Execution Vulnerability |
Showing top 20 of 100 CVEs. View all on vendor page → →
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V. Comments for CVE-2022-21887
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