Microsoft Windows

There is a recently identified security vulnerability in the Microsoft Notepad application included with Windows 11. Modern versions of Notepad allow formatted text features that support clickable links within documents. In certain situations, clicking one of these links could trigger harmful behavior, potentially leading to malicious software being downloaded or run.

This does not mean Notepad itself is dangerous — rather, attackers may try to exploit how links are handled when users open and interact with untrusted files.