ZDI-CAN-29494: ZDI-26-303: Foxit PDF Reader AcroForm Signature Use-After-Free Information Disclosure Vulnerability

Published Apr 27, 2026

Updated

This vulnerability allows remote attackers to disclose sensitive information 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 3.3. The following CVEs are assigned: CVE-2026-5942.

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-29494?

The severity of ZDI-CAN-29494 is rated at 3.3 on the CVSS scale.

How do I fix ZDI-CAN-29494?

To mitigate ZDI-CAN-29494, ensure that you update Foxit PDF Reader to the latest version provided by the vendor.

What type of vulnerability is ZDI-CAN-29494?

ZDI-CAN-29494 is classified as a use-after-free information disclosure vulnerability.

What actions do attackers take in ZDI-CAN-29494?

Attackers exploit ZDI-CAN-29494 by tricking users into visiting a malicious webpage or opening a malicious PDF file.

What software is affected by ZDI-CAN-29494?

ZDI-CAN-29494 specifically affects installations of Foxit PDF Reader.