CVE-2026-38972: Rizonesoft NOTEPAD3

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Notepad3 through 6.25.822.1 contains a DLL search-order hijacking vulnerability in the About-dialog code path in src/Notepad3.c. The application calls LoadLibrary(L"MSFTEDIT.DLL") with a bare DLL name, which allows a local attacker to place a malicious MSFTEDIT.DLL in the application directory or another preferred DLL search location and achieve arbitrary code execution in the context of the user when the About dialog is opened.

Affected products

• Rizonesoft NOTEPAD3: up to and including 6.25.822.1

Published 2026-07-02. Last modified 2026-07-08.