ZDI-25-1174: Foxit PDF Reader AcroForm User-After-Free Remote Code Execution Vulnerability

Published Dec 19, 2025
·
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-2025-66493.

Affected Software

1 affected component
Foxit Foxit PDF Reader

Event History

Dec 19, 2025
Advisory Published
via ZDI·06:00 AM
Data Sourced
via ZDI·06:00 AM
Description
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Frequently Asked Questions

1

What is the severity of ZDI-25-1174?

ZDI-25-1174 has been assigned a CVSS rating that indicates it is a critical vulnerability allowing remote code execution.

2

How do I fix ZDI-25-1174?

To fix ZDI-25-1174, update Foxit PDF Reader to the latest version provided by the vendor.

3

What are the potential impacts of ZDI-25-1174?

ZDI-25-1174 can allow attackers to execute arbitrary code on the affected installations, leading to potential data breaches or system compromise.

4

Is user interaction required to exploit ZDI-25-1174?

Yes, user interaction is required to exploit ZDI-25-1174, as the target must either visit a malicious page or open a malicious file.

5

Which software is affected by ZDI-25-1174?

ZDI-25-1174 affects installations of Foxit PDF Reader.

Contact

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