CVE-2020-26534: Foxitsoftware Foxit Reader

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

An issue was discovered in Foxit Reader and PhantomPDF before 10.1. There is an Opt object use-after-free related to Field::ClearItems and Field::DeleteOptions, during AcroForm JavaScript execution.

Affected products

• Foxitsoftware Foxit Reader: before 10.1 (fixed in 10.1)
• Foxitsoftware Phantompdf: before 10.1 (fixed in 10.1)

Published 2020-10-02. Last modified 2026-06-17.