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CVE-2021-33739— Microsoft DWM Core Library Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1909
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft DWM Core Library存在安全漏洞。以下产品和版本受到影响：Windows 10 Version 20H2 for ARM64-based Systems,Windows Server, version 20H2 (Server Core Installation),Windows 10 Version 2004 for ARM64-based Systems,Windows

CVSS 8.4 · High KEV EPSS 6.55% · P93
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I. Basic Information for CVE-2021-33739

Vulnerability Information
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Vulnerability Title
Microsoft DWM Core Library Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft DWM Core Library Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/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 DWM Core Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft DWM Core Library存在安全漏洞。以下产品和版本受到影响：Windows 10 Version 20H2 for ARM64-based Systems,Windows Server, version 20H2 (Server Core Installation),Windows 10 Version 2004 for ARM64-based Systems,Windows
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 Version 1909 10.0.0 ~ 10.0.18363.1621 cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x86:*
Microsoft Windows 10 Version 21H1 10.0.0 ~ 10.0.19043.1052 cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:x64:*
Microsoft Windows 10 Version 2004 10.0.0 ~ 10.0.19041.1052 cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1052:*:*:*:*:*:x64:*
Microsoft Windows Server version 2004 10.0.0 ~ 10.0.19041.1052 cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1052:*:*:*:*:*:*:*
Microsoft Windows 10 Version 20H2 10.0.0 ~ 10.0.19042.1052 cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052:*:*:*:*:*:x86:*
Microsoft Windows Server version 20H2 10.0.0 ~ 10.0.19042.1052 cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1052:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-33739

# POC Description Source Link Shenlong Link
1 None https://github.com/freeide2017/CVE-2021-33739-POC POC Details
2 CVE-2021-33739 PoC Analysis https://github.com/giwon9977/CVE-2021-33739_PoC_Analysis POC Details
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III. Intelligence Information for CVE-2021-33739

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Vendor Advisories for CVE-2021-33739 (1)

Same Patch Batch · Microsoft · 2021-06-08 · 50 CVEs total

CVE-2021-31962 9.4 CRITICAL Kerberos AppContainer Security Feature Bypass Vulnerability
CVE-2021-31977 8.6 HIGH Windows Hyper-V Denial of Service Vulnerability
CVE-2021-33741 8.2 HIGH Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
CVE-2021-31980 8.1 HIGH Microsoft Intune Management Extension Remote Code Execution Vulnerability
CVE-2021-1675 7.8 HIGH Windows Print Spooler Remote Code Execution Vulnerability
CVE-2021-31942 7.8 HIGH 3D Viewer Remote Code Execution Vulnerability
CVE-2021-31973 7.8 HIGH Windows GPSVC Elevation of Privilege Vulnerability
CVE-2021-31969 7.8 HIGH Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2021-31967 7.8 HIGH VP9 Video Extensions Remote Code Execution Vulnerability
CVE-2021-31940 7.8 HIGH Microsoft Office Graphics Remote Code Execution Vulnerability
CVE-2021-31939 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2021-31941 7.8 HIGH Microsoft Office Graphics Remote Code Execution Vulnerability
CVE-2021-31943 7.8 HIGH 3D Viewer Remote Code Execution Vulnerability
CVE-2021-31956 7.8 HIGH Windows NTFS Elevation of Privilege Vulnerability
CVE-2021-31954 7.8 HIGH Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2021-31952 7.8 HIGH Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
CVE-2021-31953 7.8 HIGH Windows Filter Manager Elevation of Privilege Vulnerability
CVE-2021-31951 7.8 HIGH Windows Kernel Elevation of Privilege Vulnerability
CVE-2021-31945 7.8 HIGH Paint 3D Remote Code Execution Vulnerability
CVE-2021-31946 7.8 HIGH Paint 3D Remote Code Execution Vulnerability

Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1909
Same vendor: Microsoft

V. Comments for CVE-2021-33739

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