CVE-2026-3780: Foxit PDF Editor

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

The application's installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.

Affected products

• Foxit PDF Editor: up to and including 13.2.2.24014; from 14.0.0.33046, up to and including 14.0.2.33402; from 2023.1.0.15510, up to and including 2023.3.0.23028; from 2024.1.0.23997, up to and including 2024.4.1.27687; from 2025.1.0.27937, up to and including 2025.3.0.35737
• Foxit PDF Reader: up to and including 2025.3.0.35737

Published 2026-04-01. Last modified 2026-06-17.