Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-26863— Windows Win32k Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1803
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Microsof Windows Win32k是美国微软（Microsoft）公司的一个操作系统。提供一个多任务的图形用户界面。 Windows Win32k 存在安全漏洞。以下产品和版本受到影响：Windows 10 Version 1803 for 32-bit Systems,Windows 10 Version 1803 for x64-based Systems,Windows 10 Version 1803 for ARM64-based Systems,Windows 1

CVSS 7.0 · High EPSS 11.85% · P96

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 11

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1803 10.0.0< 10.0.17134.2087 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.1817 affected
10.0.0< 10.0.17763.1817 affected
Microsoft Windows 10 Version 1909 10.0.0< 10.0.18363.1440 affected
Microsoft Windows 10 Version 2004 10.0.0< 10.0.19043.867 affected
Microsoft Windows 10 Version 20H2 10.0.0< 10.0.19043.867 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.1817 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.1817 affected
Microsoft Windows Server version 2004 10.0.0< 10.0.19043.867 affected
Microsoft Windows Server version 20H2 10.0.0< 10.0.19043.867 affected
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0< 10.0.18363.1440 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-26863

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Windows Win32k Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows 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 Windows Win32k 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Microsof Windows Win32k是美国微软（Microsoft）公司的一个操作系统。提供一个多任务的图形用户界面。 Windows Win32k 存在安全漏洞。以下产品和版本受到影响：Windows 10 Version 1803 for 32-bit Systems,Windows 10 Version 1803 for x64-based Systems,Windows 10 Version 1803 for ARM64-based Systems,Windows 1
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 10 Version 1803 10.0.0 ~ 10.0.17134.2087 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.1817 -
Microsoft Windows 10 Version 1809 10.0.0 ~ 10.0.17763.1817 -
Microsoft Windows 10 Version 1909 10.0.0 ~ 10.0.18363.1440 -
Microsoft Windows 10 Version 2004 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows 10 Version 20H2 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.1817 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.1817 -
Microsoft Windows Server version 2004 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows Server version 20H2 10.0.0 ~ 10.0.19043.867 -
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0 ~ 10.0.18363.1440 -

II. Public POCs for CVE-2021-26863

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-26863

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-26863 (2)

Exploits & Public PoCs for CVE-2021-26863 (1)

Same Patch Batch · Microsoft · 2021-03-11 · 80 CVEs total

CVE-2021-26867 9.9 CRITICAL Windows Hyper-V Remote Code Execution Vulnerability
CVE-2021-26877 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26897 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26893 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26894 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-26895 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-27080 9.3 CRITICAL Azure Sphere Unsigned Code Execution Vulnerability
CVE-2021-26865 8.8 HIGH Windows Container Execution Agent Elevation of Privilege Vulnerability
CVE-2021-27085 8.8 HIGH Internet Explorer Remote Code Execution Vulnerability
CVE-2021-26411 8.8 HIGH Internet Explorer Memory Corruption Vulnerability
CVE-2021-26876 8.8 HIGH OpenType Font Parsing Remote Code Execution Vulnerability
CVE-2021-27076 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2021-26864 8.4 HIGH Windows Virtual Registry Provider Elevation of Privilege Vulnerability
CVE-2021-26890 7.8 HIGH Application Virtualization Remote Code Execution Vulnerability
CVE-2021-26860 7.8 HIGH Windows App-V Overlay Filter Elevation of Privilege Vulnerability
CVE-2021-26885 7.8 HIGH Windows WalletService Elevation of Privilege Vulnerability
CVE-2021-26887 7.8 HIGH Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability
CVE-2021-26889 7.8 HIGH Windows Update Stack Elevation of Privilege Vulnerability
CVE-2021-27057 7.8 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2021-27061 7.8 HIGH HEVC Video Extensions Remote Code Execution Vulnerability

Showing top 20 of 80 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1803
Same vendor: Microsoft

V. Comments for CVE-2021-26863

No comments yet

Leave a comment