TL;DR: Windows 11's Notepad app has a security flaw rated as a 'high' severity vulnerability, one that allows for remote code execution. The good news is that it's already been patched by Microsoft, ...

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Microsoft has fixed a major security issue in Windows 11’s Notepad tool. This security flaw allowed hackers to execute code on users' computers by tricking them into clicking on malicious links ...

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Microsoft patches CVE-2026-20841, a high-severity Windows Notepad flaw that could allow code execution via malicious Markdown files. Image: Microsoft. Notepad has long been Windows’ quiet utility ...

If a user opened this Markdown file in Windows 11 Notepad versions 11.2510 and earlier and viewed it in Markdown mode, the above text would appear as a clickable link. If the link is clicked with ...

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Users could be tricked into running arbitrary code, but the issue was patched last week. February 17, 2026 Add as a preferred source on Google Add as a preferred source on Google Microsoft patched a ...

Bad actors could use the flaw to remotely load and execute malicious files on a victim’s computer. Bad actors could use the flaw to remotely load and execute malicious files on a victim’s computer. is ...

Microsoft patches Windows 11 Notepad RCE flaw CVE-2026-20841 Vulnerability exploited Markdown links to execute malicious code with user permissions Patch Tuesday update fixes issue; versions 11.2510 ...

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