Windows 11 Notepad Vulnerability Linked to New Features

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Windows 11 Notepad Vulnerability Linked to New Features

First seen 12 Feb 2026, 21:16 UTC • •33.2

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ThreatCluster •March 12, 2026 at 16:10 UTC

Microsoft's recent updates to the Windows 11 Notepad app have introduced a remote code execution vulnerability. This flaw allows hackers to execute arbitrary code due to the addition of new features such as formatting and tables. Users are advised to update their Notepad app to mitigate this risk.

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Updated 228d ago How this analysis works

Timeline

2026-02-11

Security vulnerability in Notepad reported

2026-02-11

New features added to Notepad, including formatting and tables

Recent

Users advised to update Notepad to fix vulnerability

More articles in this cluster (2)

Threat Graph

7 entities, 12 inferred relationships (STIX 2.1).

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Technique (4)

Remote Code Execution
Zero-day Exploit
T1059 - Command and Scripting Interpreter
T1203 - Exploitation for Client Execution

Affected Platform (3)

Microsoft Store
Notepad
Windows

Relationships

Remote Code Execution targets Microsoft Store
Remote Code Execution targets Notepad
Remote Code Execution targets Windows
Zero-day Exploit targets Microsoft Store
Zero-day Exploit targets Notepad
Zero-day Exploit targets Windows
T1059 - Command and Scripting Interpreter targets Microsoft Store
T1059 - Command and Scripting Interpreter targets Notepad
T1059 - Command and Scripting Interpreter targets Windows
T1203 - Exploitation for Client Execution targets Microsoft Store
T1203 - Exploitation for Client Execution targets Notepad
T1203 - Exploitation for Client Execution targets Windows

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