Apr 27, 2014 - Autodesk announced Heartbleed hot fixes and AutoCAD 360 updates for fix Heartbleed issues.
Autodesk has developed the AutoCAD Security Hotfix on this page for Autodesk AutoCAD 2015, AutoCAD LT 2015, AutoCAD 2015-based vertical products, and other AutoCAD 2015-based products, to address the Heartbleed vulnerability
2015 AutoCAD and AutoCAD based vertical product users can install a hot fix available here or do the AutoCAD 360 updates
2014 AutoCAD and AutoCAD based vertical product users can just install the AutoCAD 360 updates.