ZDI-CAN-28403: ZDI-25-1176: Foxit PDF Reader Annotation Use-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-2025-66495.

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-CAN-28403?

ZDI-CAN-28403 has a high severity due to its ability to allow remote code execution in affected versions of Foxit PDF Reader.

2

How do I fix ZDI-CAN-28403?

To fix ZDI-CAN-28403, update Foxit PDF Reader to the latest version as released by the vendor.

3

What kind of exploit is associated with ZDI-CAN-28403?

ZDI-CAN-28403 can be exploited by remote attackers through malicious pages or files requiring user interaction.

4

What are the risks of not addressing ZDI-CAN-28403?

Failing to address ZDI-CAN-28403 may lead to unauthorized access to system files and potential compromise of sensitive information.

5

Who is affected by ZDI-CAN-28403?

Users of affected installations of Foxit PDF Reader are at risk from the vulnerability identified as ZDI-CAN-28403.

Contact

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