CVE-2026-20841— Windows Notepad App Remote Code Execution Vulnerability
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I. Basic Information for CVE-2026-20841
Vulnerability Information
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Vulnerability Title
Windows Notepad App Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper neutralization of special elements used in a command ('command injection') in Windows Notepad App allows an unauthorized attacker to execute code locally.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows Notepad 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Notepad是美国微软（Microsoft）公司的一个文本编辑程序。 Microsoft Windows Notepad存在命令注入漏洞。攻击者利用该漏洞可以远程执行代码。
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 Notepad | 11.0.0 ~ 11.2512 | - |
II. Public POCs for CVE-2026-20841
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | PoC | https://github.com/BTtea/CVE-2026-20841-PoC | POC Details |
| 2 | CVE-2026-20841 - Windows notepad.exe RCE | https://github.com/RajaUzairAbdullah/CVE-2026-20841 | POC Details |
| 3 | PoC for the "Windows Notepad RCE" | https://github.com/tangent65536/CVE-2026-20841 | POC Details |
| 4 | None | https://github.com/patchpoint/CVE-2026-20841 | POC Details |
| 5 | None | https://github.com/uky007/CVE-2026-20841_notepad_analysis | POC Details |
| 6 | None | https://github.com/atiilla/CVE-2026-20841 | POC Details |
| 7 | CVE-2026-20841 | https://github.com/dogukankurnaz/CVE-2026-20841-PoC | POC Details |
| 8 | PoC for a remote code execution flaw in Windows Notepad's markdown renderer. The markdown engine does not restrict URL protocols, allowing arbitrary protocol handlers to be triggered via clickable links | https://github.com/SecureWithUmer/CVE-2026-20841 | POC Details |
| 9 | Proof of Concept for CVE-2026-20841 | https://github.com/hackfaiz/CVE-2026-20841-PoC | POC Details |
| 10 | None | https://github.com/EleniChristopoulou/PoC-CVE-2026-20841 | POC Details |
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · Microsoft · 2026-02-10 · 54 CVEs total
| CVE-2026-21531 | 9.8 CRITICAL | Azure SDK for Python Remote Code Execution Vulnerability |
| CVE-2026-21537 | 8.8 HIGH | Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability |
| CVE-2026-21510 | 8.8 HIGH | Windows Shell Security Feature Bypass Vulnerability |
| CVE-2026-21516 | 8.8 HIGH | GitHub Copilot for Jetbrains Remote Code Execution Vulnerability |
| CVE-2026-21513 | 8.8 HIGH | MSHTML Framework Security Feature Bypass Vulnerability |
| CVE-2026-21255 | 8.8 HIGH | Windows Hyper-V Security Feature Bypass Vulnerability |
| CVE-2026-21518 | 8.8 HIGH | GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability |
| CVE-2026-21256 | 8.8 HIGH | GitHub Copilot and Visual Studio Remote Code Execution Vulnerability |
| CVE-2026-21228 | 8.1 HIGH | Azure Local Remote Code Execution Vulnerability |
| CVE-2026-21257 | 8.0 HIGH | GitHub Copilot and Visual Studio Elevation of Privilege Vulnerability |
| CVE-2026-21229 | 8.0 HIGH | Power BI Remote Code Execution Vulnerability |
| CVE-2026-21523 | 8.0 HIGH | GitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability |
| CVE-2026-21250 | 7.8 HIGH | Windows HTTP.sys Elevation of Privilege Vulnerability |
| CVE-2026-21259 | 7.8 HIGH | Microsoft Excel Elevation of Privilege Vulnerability |
| CVE-2026-21533 | 7.8 HIGH | Windows Remote Desktop Services Elevation of Privilege Vulnerability |
| CVE-2026-21514 | 7.8 HIGH | Microsoft Word Security Feature Bypass Vulnerability |
| CVE-2026-21231 | 7.8 HIGH | Windows Kernel Elevation of Privilege Vulnerability |
| CVE-2026-21238 | 7.8 HIGH | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability |
| CVE-2026-21236 | 7.8 HIGH | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability |
| CVE-2026-21239 | 7.8 HIGH | Windows Kernel Elevation of Privilege Vulnerability |
Showing top 20 of 54 CVEs. View all on vendor page → →
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