CVE-2026-20841
Undergoing Analysis Undergoing Analysis - In Progress
Command Injection in Windows Notepad Allows Remote Code Execution

Publication date: 2026-02-10

Last updated on: 2026-02-25

Assigner: Microsoft Corporation

Description
Improper neutralization of special elements used in a command ('command injection') in Windows Notepad App allows an unauthorized attacker to execute code locally.
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Meta Information
Published
2026-02-10
Last Modified
2026-02-25
Generated
2026-06-16
AI Q&A
2026-02-10
EPSS Evaluated
2026-06-14
NVD
CVE-2026-20841
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_notepad to 11.2510 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
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Executive Summary

This vulnerability is a command injection flaw in the Windows Notepad App. It occurs because the application improperly neutralizes special elements used in commands, which allows an unauthorized attacker to execute arbitrary code remotely over a network.

Impact Analysis

The vulnerability can have a severe impact as it allows remote code execution by an attacker without requiring privileges. This means an attacker could potentially take full control of the affected system, leading to data loss, system compromise, or disruption of services.

Compliance Impact

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Detection Guidance

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