CVE-2019-6766: Foxitsoftware Foxit Reader

Medium severity, CVSS 5.5. EPSS: 2.7% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.1.16828. 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 removeField method when processing AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-8162.

Affected products

• Foxitsoftware Foxit Reader: up to and including 9.4.1.16828
• Foxitsoftware Phantompdf: up to and including 8.3.9.41099; from 9.0.0, up to and including 9.4.1.16828

Published 2019-06-03. Last modified 2026-06-17.