Zero-Day Advisory

Fortinet Discovers Autodesk DWG TrueView Buffer Over-Read Vulnerability


Fortinet's FortiGuard Labs has discovered a buffer over-read vulnerability in Autodesk DWG TrueView.

Autodesk DWG TrueView is a free multimedia software that allows users to view AutoCAD and other DWG files. Users can measure & print drawings and convert files between AutoCAD formats. It is particularly useful for architects, engineers, and construction professionals.

A buffer over-read vulnerability has been discovered in Autodesk DWG Trueview by FortiGuard Labs. The vulnerability is caused by a crafted DWG file which causes a memory corruption. It could allow malicious users to create sensitive information leak scenarios.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Oct 04, 2021

Users should apply the solution provided by Autodesk.


Fortinet reported the vulnerability to Autodesk on August 13, 2021.

Autodesk confirmed the vulnerability on September 21, 2021.

Autodesk patched the vulnerability on March 28, 2022.


This vulnerability was discovered by Yonghui Han of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.