Windows 11 Notepad Bug Let Markdown Links Run Files Without Warning
Microsoft has patched a high-severity security vulnerability in Windows 11 Notepad that allowed specially crafted Markdown links to launch local or remote programs – without triggering standard Windows security warnings. The flaw tracked as CVE-2026-20841 was fixed as part of the February 2026 Patch Tuesday updates, which we release monthly. While exploitation required a user to open…
