CRITICAL Windows Notepad Exploit! CVE-2026-20841 RCE Explained!

Описание: For decades, Windows Notepad was considered one of the safest tools on your PC, but a new critical vulnerability has changed everything. In this video, we break down CVE-2026-20841, a Remote Code Execution (RCE) flaw with an alarming CVSS score of 8.8 that allows attackers to run their own commands on your system from a remote location.
We explore how Notepad’s evolution from a basic Win32 utility into a modern Microsoft Store app—adding features like Markdown support—introduced technical complexities that hackers can now exploit. You will learn how malicious protocol handlers and URI schemes can be used to bypass security warnings when a user clicks a link inside a specially crafted Markdown file.
Key Takeaways:
• The Vulnerability: Modern Notepad handles Markdown links incorrectly, allowing them to trigger untrusted protocols.
• The Risk: Attackers use social engineering to trick users into clicking links in files that look like harmless "readme" or instruction documents.
• Affected Versions: This exploit targets Notepad versions earlier than 11.2510.
• The Fix: Always ensure your Microsoft Store apps are set to update automatically to receive the latest security patches.
A Proof of Concept (PoC) for this vulnerability has already been shared on platforms like GitHub, demonstrating how researchers can successfully take control of a system. Watch to find out how to stay protected and why even the simplest apps require your attention.

Source: https://tutorial.emka.web.id/2026/02/...
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