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
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Frequently Asked Questions

1

What is the severity of ZDI-26-302?

The severity of ZDI-26-302 is rated at 7.8 on the CVSS scale.

2

How do I fix ZDI-26-302?

To mitigate ZDI-26-302, ensure that you update Foxit PDF Reader to the latest version that contains the security patch.

3

What does ZDI-26-302 allow attackers to do?

ZDI-26-302 allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader.

4

What is required to exploit ZDI-26-302?

User interaction is required to exploit ZDI-26-302, as the target must visit a malicious page or open a malicious file.

5

Which software is affected by ZDI-26-302?

ZDI-26-302 affects Foxit PDF Reader installations.

Contact

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