notepad security

Microsoft’s February Patch Tuesday closed a dangerous loophole in the modern Notepad app that could let a single click inside a Markdown file launch unverified protocols and execute remote code with the privileges of the logged‑in user. pad has long been the archetype of a tiny, offline text...

Microsoft's modernized Notepad shipped a high‑severity surprise this week: a command‑injection flaw in the app’s Markdown link handling can be weaponized to execute code under the context of the logged‑in user if an unwitting person opens a malicious .md file and clicks a crafted link. The...

If you’re running Windows 11, update now — Microsoft has closed a high‑severity remote code execution flaw in the modern Notepad app that could let a single click in a Markdown file turn into code execution under your user account. Background: Notepad’s unexpected attack surface Notepad has been...

Microsoft issued an urgent fix this week for a high‑severity vulnerability in the modern Windows Notepad app that could allow an attacker to execute arbitrary commands on a target PC simply by getting a user to open a specially crafted Markdown (.md) file and click a link inside it. The flaw...

Microsoft’s February Patch Tuesday closed a dangerous loophole in the modern Windows Notepad app that could let a deceptively simple Markdown (.md) file become an engine for remote code execution when a user clicked a crafted link. Background / Overview Notepad’s recent transformation from a...

Microsoft’s February Patch Tuesday closed a dangerous loophole in the modern Notepad app that could let an attacker turn a simple Markdown (.md) file into a remote code execution (RCE) trap — a single click on a crafted link inside Notepad’s Markdown view could launch unverified protocols and...

Microsoft’s Security Update Guide has recorded CVE-2026-20841 as a Remote Code Execution (RCE) vulnerability affecting the Windows Notepad app, and the vendor’s terse advisory combined with its “report confidence” metadata demands immediate, measured action from system administrators and...