SRC-2020-0015 : Foxit Reader Link Index Out-of-Bounds Read Information Disclosure Vulnerability



CVSS Score:

3.3, (AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N)

Affected Vendors:


Affected Products:

Foxit Reader

Vulnerability Details:

This vulnerability allows remote attackers to disclose sensitive information on affected 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 processing of text links inside of PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

Vendor Response:

Foxit has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline:

  • 2020-04-02 – Sent to and verified by Foxit
  • 2020-07-31 – Coordinated public release of advisory


This vulnerability was discovered by Steven Seeley of Qihoo 360 Vulcan Team