DLL preloading vulnerability in versions 2017, 2018, 2019, and 2020 of Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Map 3D, AutoCAD Mechanical, AutoCAD MEP, AutoCAD Plant 3D and version 2017 of AutoCAD P&ID. An attacker may trick a user into opening a malicious DWG file that may leverage a DLL preloading vulnerability in AutoCAD which may result in code execution.