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CVE-2021-28439— Windows TCP/IP Driver Denial of Service 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 Windows 10等都是美国微软（Microsoft）公司的产品。Windows 10是一套个人电脑使用的操作系统。TCP（Transmission Control Protocol,传输控制协议）等都是的产品。TCP是一种面向连接的、可靠的、基于字节流的传输层通信协议，由IETF的RFC 793定义。Windows是一种桌面操作系统。Windows 7是一套个人电脑使用的操作系统。 Microsoft Windows TCP/IP 驱动程序拒绝服务漏洞。以下产品和版本受到影响：Wi

CVSS 7.5 · High EPSS 6.11% · P93 Updated Feb 25, 2026

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

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I. Basic Information for CVE-2021-28439

Vulnerability Information

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Vulnerability Title

Windows TCP/IP Driver Denial of Service Vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Windows TCP/IP Driver Denial of Service Vulnerability

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

Microsoft Windows 输入验证错误漏洞

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)

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 1507	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_1507:::::::x86:*`
Microsoft	Windows 10 Version 1607	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*`
Microsoft	Windows Server 2016	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2016::::::::`
Microsoft	Windows Server 2016 (Server Core installation)	10.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2016::::::::`
Microsoft	Windows 7	6.1.0 ~ publication	`cpe:2.3:o:microsoft:windows_7::sp1:::::x86:`
Microsoft	Windows 7 Service Pack 1	6.1.0 ~ publication	`cpe:2.3:o:microsoft:windows_7::sp1:::::x64:`
Microsoft	Windows 8.1	6.3.0 ~ publication	`cpe:2.3:o:microsoft:windows_8.1:::::::x86:*`
Microsoft	Windows Server 2008 Service Pack 2	6.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2008_sp2:::::::x64:*`
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	6.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2008_sp2:::::::x64:*`
Microsoft	Windows Server 2008 Service Pack 2	6.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2008_sp2:::::::x86:*`
Microsoft	Windows Server 2008 R2 Service Pack 1	6.1.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2008_R2:::::::x64:*`
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	6.0.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2008_R2:::::::x64:*`
Microsoft	Windows Server 2012	6.2.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2012:::::::x64:*`
Microsoft	Windows Server 2012 (Server Core installation)	6.2.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2012:::::::x64:*`
Microsoft	Windows Server 2012 R2	6.3.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2012_R2:::::::x64:*`
Microsoft	Windows Server 2012 R2 (Server Core installation)	6.3.0 ~ publication	`cpe:2.3:o:microsoft:windows_server_2012_R2:::::::x64:*`
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-2021-28439

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2021-28439

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Vendor Advisories for CVE-2021-28439 (1)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28439 x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2021-28439

Same Patch Batch · Microsoft · 2021-04-13 · 108 CVEs total

CVE-2021-28481	9.8 CRITICAL	Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28480	9.8 CRITICAL	Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28483	9.0 CRITICAL	Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28327	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28344	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28329	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28330	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28331	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28332	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28333	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28334	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28335	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28336	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28337	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28338	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28339	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28340	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28356	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28357	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28358	8.8 HIGH	Remote Procedure Call Runtime Remote Code Execution Vulnerability

Showing top 20 of 108 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1803

Same vendor: Microsoft

V. Comments for CVE-2021-28439

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

CVE-2021-28439— Windows TCP/IP Driver Denial of Service Vulnerability

Quick assessment

Possible ATT&CK Techniques 1 AI

I. Basic Information for CVE-2021-28439

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2021-28439

III. Intelligence Information for CVE-2021-28439

Vendor Advisories for CVE-2021-28439 (1)

Same Patch Batch · Microsoft · 2021-04-13 · 108 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2021-28439

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