EUVD-2026-39908

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, a local process in the same interactive Windows session can send a malformed WMCOPYDATA message to Notepad++ using the COPYDATAFULLCMDLINE path. The handler appears to process COPYDATASTRUCT.lpData as an unbounded...

CVE-2026-48800

Notepad++ prior to 8.9.6.1 is affected by CVE-2026-48800 where the content inside in shortcuts.xml is read without validation and used to build a Run menu item that ShellExecute() executes. The attacker-controlled string becomes the executable path when the user clicks the Run menu entry, enabl...

CVE-2026-25866

MobaXterm versions prior to 26.1 contain an uncontrolled search path element vulnerability. The application calls WinExec to execute Notepad++ without a fully qualified executable path when opening remote files. An attacker can exploit the search path behavior by placing a malicious executable...

Notepad++ 8.9 Persistence Module

This Metasploit post-exploitation module abuses a legitimate Notepad++ feature by modifying the shortcuts.xml configuration file to register a custom external tool. The added tool appears in the Notepad++ Run menu and executes a user-defined command when manually selected by the user. This...