ZDI-CAN-29492: ZDI-26-302: Foxit PDF Reader AcroForm Signature Use-After-Free Remote Code Execution Vulnerability

Published Apr 27, 2026

Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-5941.

Affected Software

1 affected component

Foxit Foxit PDF Reader

Event History

Apr 27, 2026

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-CAN-29492?

The severity of ZDI-CAN-29492 is critical due to the potential for remote code execution.

How do I fix ZDI-CAN-29492?

To fix ZDI-CAN-29492, update Foxit PDF Reader to the latest version provided by the vendor.

What systems are affected by ZDI-CAN-29492?

ZDI-CAN-29492 affects all installations of Foxit PDF Reader that utilize AcroForm signatures.

What type of vulnerability is ZDI-CAN-29492?

ZDI-CAN-29492 is a use-after-free vulnerability that can lead to remote code execution.

What is required to exploit ZDI-CAN-29492?

Exploitation of ZDI-CAN-29492 requires user interaction, as the target must open a specially crafted PDF file.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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