Zero-Day Advisory

Fortinet Discovers AutoDesk Subassembly Composer Memory Corruption Vulnerability


Fortinet's FortiGuard Labs has discovered a Memory Corruption vulnerability in Autodesk Subassembly Composer.

Autodesk Subassembly Composer is a critical component of AutoDesk Civil3D product suite. It provides an interface for composing and modifying complex subassemblies, without a need for programming.

A memory corruption vulnerability has been discovered in AutoDesk Subassembly Composer by FortiGuard Labs. The vulnerability is caused by a crafted PKT file which causes an out-of-bounds memory access. It could allow malicious users to create remote code execution scenarios.


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

Released Jul 21, 2022

Users should apply the solution provided by AutoDesk.


Fortinet reported the vulnerability to Autodesk on May 21, 2022.

Autodesk confirmed the vulnerability on July 15, 2022.

AutoDesk patched the vulnerability on September 29, 2022.


This vulnerability was discovered by Kushal Arvind Shah 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.