Thank you for downloading the AutoCAD 2017-2019 Combo Security Hotfix.

This readme contains the latest information regarding the installation and use of this Hotfix. It is strongly recommended that you read this entire document before updating your product(s).

For reference, please save this document to your hard drive or print a copy.

• Affected Products
• Issues Resolved by This Update
• Installation Instructions
• To Uninstall This Hotfix

This Hotfix applies to the 2017-2019 subscription and 2017-2018 non-subscription releases of the following products:

• Autodesk Advance Steel;
• Autodesk AutoCAD;
• Autodesk AutoCAD Architecture;
• Autodesk AutoCAD Electrical;
• Autodesk AutoCAD Map 3D;
• Autodesk AutoCAD Mechanical;
• Autodesk AutoCAD MEP;
• Autodesk AutoCAD P&ID;
• Autodesk AutoCAD Plant 3D;
• Autodesk AutoCAD LT;
• Autodesk Civil 3D.

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As part of Autodesk’s ongoing efforts to provide the best security possible to our customers, we are releasing these updates to remediate multiple vulnerabilities discovered through testing and research by software security experts. These critical updates should be applied by all customers.

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You must have administrative privileges on your Microsoft^® Windows^® operating system to complete the installation process. Note that the Microsoft .NET Framework 4.6 for Windows (or a higher version) must be installed prior to applying this Hotfix.

Option 1: Preferred

Install the Hotfix for your product using the Autodesk Desktop App.

Note: The Hotfix installer will automatically install all previously released Updates and service packs on your computer.

Option 2:

Note: You will need to install all available Updates and service packs for your selected release version (2017, 2018, or 2019) prior to applying this Hotfix.

Download the correct Hotfix for your application from the Accounts portal to a location on your local computer (the AutoCAD Hotfix can be applied to AutoCAD-based vertical products and specialized toolsets).

For subscription customers: AutoCAD and AutoCAD-based products / specialized toolsets:

• AutoCAD 2017.1.2 Combo Security Hotfix 64bit
• AutoCAD 2017.1.2 Combo Security Hotfix 32bit


• AutoCAD 2018.1.2 Combo Security Hotfix 64bit
• AutoCAD 2018.1.2 Combo Security Hotfix 32bit


• AutoCAD 2019.1.2 Combo Security Hotfix 64bit
• AutoCAD 2019.1.2 Combo Security Hotfix 32bit

For subscription customers: AutoCAD LT:

• AutoCAD LT 2017.1.2 Combo Security Hotfix 64bit
• AutoCAD LT 2017.1.2 Combo Security Hotfix 32bit


• AutoCAD LT 2018.1.2 Combo Security Hotfix 64bit
• AutoCAD LT 2018.1.2 Combo Security Hotfix 32bit


• AutoCAD LT 2019.1.2 Combo Security Hotfix 64bit
• AutoCAD LT 2019.1.2 Combo Security Hotfix 32bit

For non-subscription customers: AutoCAD and AutoCAD-based products / specialized toolsets:

• AutoCAD 2017 SP1 Combo Security Hotfix 64bit
• AutoCAD 2017 SP1 Combo Security Hotfix 32bit


• AutoCAD 2018 Combo Security Hotfix 64bit
• AutoCAD 2018 Combo Security Hotfix 32bit

For non-subscription customers: AutoCAD LT:

• AutoCAD LT 2017 SP1 Combo Security Hotfix 64bit
• AutoCAD LT 2017 SP1 Combo Security Hotfix 32bit


• AutoCAD LT 2018 Combo Security Hotfix 64bit
• AutoCAD LT 2018 Combo Security Hotfix 32bit

Double click on the executable file to complete the installation.

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Although not recommended, you can use the Control Panel (Programs and Features on Windows 10) to rollback this combo security Hotfix. Any updates and service packs installed by the Hotfix will remain on the machine until uninstalled by the user.

Exception: Uninstalling any of the 4 security Hotfixes listed below may also remove any installed Updates all the way back to AutoCAD/AutoCAD LT 2017 SP1.

• AutoCAD 2017.1.2 Combo Security Hotfix 64bit
• AutoCAD 2017.1.2 Combo Security Hotfix 32bit


• AutoCAD LT 2017.1.2 Combo Security Hotfix 64bit
• AutoCAD LT 2017.1.2 Combo Security Hotfix 32bit

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