Zero-Day Advisory

Fortinet Discovers Adobe Illustrator CC 2019 Insecure DLL Loading Vulnerability


Fortinet's FortiGuard Labs has discovered an Insecure DLL Loading vulnerability in Adobe Illustrator CC 2019.

Adobe Illustrator CC is a vector graphics editor. It is used by millions of designers and artists to create everything from gorgeous web and mobile graphics to logos, icons, book illustrations, product packaging, and billboards.

Adobe Illustrator CC 2019 is susceptible to an Insecure DLL Loading vulnerability. The issue occurs when the application opens a GIF file. The application generally follows a specific search path to locate the DLL. The vulnerability can be exploited by putting a malicious DLL in the same folder as the GIF file. It can result in a foreign DLL running under the context of the application.


Users should apply the solution provided by Adobe.


Fortinet reported the vulnerability to Adobe on October 30, 2019.

Adobe confirmed the vulnerability on December 18, 2019.

Adobe patched the vulnerability on December 20, 2019.


This vulnerability was discovered by Honggang Ren 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.