CVE-2021-31443: Foxitsoftware Foxit Reader

Low severity, CVSS 3.3. EPSS: 2% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Reader 10.1.1.37576. 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 handling of U3D objects embedded in 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 object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-13240.

Affected products

• Foxitsoftware Foxit Reader: up to and including 10.1.3.37598
• Foxitsoftware Phantompdf: up to and including 9.7.5.29616; from 10.0.0.0, up to and including 10.1.3.37598

Published 2021-05-07. Last modified 2026-06-17.