SRC-2018-0017 : Foxit Reader PDF Parsing U3D Array Indexing Out-of-Bounds Write Remote Code Execution Vulnerability



CVSS Score:

6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)

Affected Vendors:


Affected Products:

Foxit Reader and Foxit PhantomPDF

Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of embedded U3D images inside of PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in improper index calculation for an array access. An attacker can leverage this vulnerability to execute code under the context of the current process.

Vendor Response:

Foxit has issued an update to correct these vulnerabilities. More details can be found at:

Disclosure Timeline:

  • 2018-01-25 – Verified and sent to Foxit
  • 2018-04-27 – Coordinated public release of advisory


This vulnerability was discovered by Steven Seeley (mr_me) of Source Incite