CVE-2018-9940: Foxitsoftware Foxit Reader

High severity, CVSS 8.8. EPSS: 3.1% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.0.29935. 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 the layout sheet attribute. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5374.

Affected products

• Foxitsoftware Foxit Reader: up to and including 9.0.1.1049
• Foxitsoftware Phantompdf: up to and including 9.0.1.1049

Published 2018-05-17. Last modified 2026-06-17.