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CVE-2021-1732— Windows Win32k Elevation of Privilege Vulnerability

Quick assessment

Affected

Microsoft Windows 10 Version 1803

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 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 Win32k 中存在缓冲区错误漏洞。以下产品及版本受到影响：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 10 Version 1

CVSS 7.8 · High KEV · Ransomware EPSS 77.76% · P100 Updated Aug 12, 2026

Public Exploits 1

Metasploit · 1 cve_2022_21882_win32k.rb#CVE-2021-1732 [exploit]

In-the-Wild Activity Observed cisa_kev · confirmed

Possible ATT&CK Techniques 2 AI

T1059 · Command and Scripting Interpreter T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 10

Vendor	Product	Version Range	Status
Microsoft	Windows 10 Version 1803	`10.0.0< publication`	affected
Microsoft	Windows 10 Version 1809	`10.0.0< publication`	affected
Microsoft	Windows 10 Version 1909	`10.0.0< publication`	affected
Microsoft	Windows 10 Version 2004	`10.0.0< publication`	affected
Microsoft	Windows 10 Version 20H2	`10.0.0< publication`	affected
Microsoft	Windows Server 2019	`10.0.0< publication`	affected
Microsoft	Windows Server 2019 (Server Core installation)	`10.0.0< publication`	affected
Microsoft	Windows Server version 2004	`10.0.0< publication`	affected
Microsoft	Windows Server version 20H2	`10.0.0< publication`	affected
Microsoft	Windows Server, version 1909 (Server Core installation)	`10.0.0< publication`	affected

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I. Basic Information for CVE-2021-1732

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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:L/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 缓冲区错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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

10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.

Read summary Full analysis (login)

Affected Products

Vendor	Product	Affected Versions	CPE
Microsoft	Windows 10 Version 1803	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*`
Microsoft	Windows 10 Version 1809	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*`
Microsoft	Windows Server 2019	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2019::::::::`
Microsoft	Windows Server 2019 (Server Core installation)	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2019::::::::`
Microsoft	Windows 10 Version 1909	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_1909:::::::x86:*`
Microsoft	Windows Server, version 1909 (Server Core installation)	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_1909::::::::`
Microsoft	Windows 10 Version 2004	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*`
Microsoft	Windows Server version 2004	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2004::::::::`
Microsoft	Windows 10 Version 20H2	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_20H2:::::::x86:*`
Microsoft	Windows Server version 20H2	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_20H2::::::::`

II. Public POCs for CVE-2021-1732

#	POC Description	Source Link	Shenlong Link
1	CVE-2021-1732 Exploit	https://github.com/KaLendsi/CVE-2021-1732-Exploit	POC Details
2	CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发	https://github.com/k-k-k-k-k/CVE-2021-1732	POC Details
3	None	https://github.com/oneoy/CVE-2021-1732-Exploit	POC Details
4	None	https://github.com/linuxdy/CVE-2021-1732_exp	POC Details
5	CVE-2021-1732 poc & exp; tested on 20H2	https://github.com/Pai-Po/CVE-2021-1732	POC Details
6	Read my blog for more info -	https://github.com/exploitblizzard/Windows-Privilege-Escalation-CVE-2021-1732	POC Details
7	None	https://github.com/BeneficialCode/CVE-2021-1732	POC Details
8	对1909下windows版本的EXP进行分析，并对代码添加调试和注释	https://github.com/ExploitCN/CVE-2021-1732-EXP-	POC Details
9	None	https://github.com/r1l4-i3pur1l4/CVE-2021-1732	POC Details
10	CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发	https://github.com/fenalik/CVE-2021-1732	POC Details
11	CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发	https://github.com/4dp/CVE-2021-1732	POC Details
12	None	https://github.com/yangshifan-git/CVE-2021-1732	POC Details
13	None	https://github.com/asepsaepdin/CVE-2021-1732	POC Details
14	Compiled CVE-2021-1732(WIndows XP-10(till 20H1) LPE)	https://github.com/Sausageinforest/CVE-2021-1732	POC Details
15	None	https://github.com/Threekiii/Awesome-POC/blob/master/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E6%BC%8F%E6%B4%9E/Windows%20Win32k%20%E6%9C%AC%E5%9C%B0%E6%8F%90%E6%9D%83%E6%BC%8F%E6%B4%9E%20CVE-2021-1732.md	POC Details
16	CVE-2021-1732 Microsoft Windows 10 本地提权漏研究及Poc/Exploit开发	https://github.com/flyinbedxyz/CVE-2021-1732	POC Details

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2021-1732

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Vendor Advisories for CVE-2021-1732 (1)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732 x_refsource_MISC

Exploits & Public PoCs for CVE-2021-1732 (2)

http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html x_refsource_MISC
http://packetstormsecurity.com/files/161880/Win32k-ConsoleControl-Offset-Confusion.html x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2021-1732

Same Patch Batch · Microsoft · 2021-02-25 · 58 CVEs total

CVE-2021-24077	9.8 CRITICAL	Windows Fax Service Remote Code Execution Vulnerability
CVE-2021-24078	9.8 CRITICAL	Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-24074	9.8 CRITICAL	Windows TCP/IP Remote Code Execution Vulnerability
CVE-2021-24094	9.8 CRITICAL	Windows TCP/IP Remote Code Execution Vulnerability
CVE-2021-24088	8.8 HIGH	Windows Local Spooler Remote Code Execution Vulnerability
CVE-2021-24066	8.8 HIGH	Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2021-24093	8.8 HIGH	Windows Graphics Component Remote Code Execution Vulnerability
CVE-2021-24072	8.8 HIGH	Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2021-1728	8.8 HIGH	System Center Operations Manager Elevation of Privilege Vulnerability
CVE-2020-17162	8.8 HIGH	Microsoft Windows Security Feature Bypass Vulnerability
CVE-2021-24105	8.4 HIGH	Package Managers Configurations Remote Code Execution Vulnerability
CVE-2021-1722	8.1 HIGH	Windows Fax Service Remote Code Execution Vulnerability
CVE-2021-26701	8.1 HIGH	.NET Core Remote Code Execution Vulnerability
CVE-2021-24112	8.1 HIGH	.NET Core Remote Code Execution Vulnerability
CVE-2021-1726	8.0 HIGH	Microsoft SharePoint Server Spoofing Vulnerability
CVE-2021-24083	7.8 HIGH	Windows Address Book Remote Code Execution Vulnerability
CVE-2021-26700	7.8 HIGH	Visual Studio Code npm-script Extension Remote Code Execution Vulnerability
CVE-2021-25195	7.8 HIGH	Windows PKU2U Elevation of Privilege Vulnerability
CVE-2021-24103	7.8 HIGH	Windows Event Tracing Elevation of Privilege Vulnerability
CVE-2021-24091	7.8 HIGH	Windows Camera Codec Pack Remote Code Execution Vulnerability

Showing top 20 of 58 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1803

Same vendor: Microsoft

V. Comments for CVE-2021-1732

No comments yet

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

CVE-2021-1732— Windows Win32k Elevation of Privilege Vulnerability

Quick assessment

Public Exploits 1

Possible ATT&CK Techniques 2 AI

Affected Version Matrix 10

I. Basic Information for CVE-2021-1732

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Shenlong Deep Dive — AI Deep Analysis

Affected Products

II. Public POCs for CVE-2021-1732

III. Intelligence Information for CVE-2021-1732

Vendor Advisories for CVE-2021-1732 (1)

Exploits & Public PoCs for CVE-2021-1732 (2)

Same Patch Batch · Microsoft · 2021-02-25 · 58 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2021-1732

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