CVE-2018-3940: Foxitsoftware Phantompdf

High severity, CVSS 8.8. EPSS: 2.1% chance of exploitation in the next 30 days.

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused. An attacker needs to trick the user to open the malicious file to trigger.

Affected products

• Foxitsoftware Phantompdf: up to and including 9.2.0.9297
• Foxitsoftware Reader: up to and including 9.2.0.9297

Published 2018-10-08. Last modified 2026-06-17.