ZDI-26-611: (0Day) pdfforge PDF Architect App Object Out-Of-Bounds Read Remote Code Execution Vulnerability

Published Aug 31, 2026
·
Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of pdfforge PDF Architect. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of App objects. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Other sources

This vulnerability allows remote attackers to execute arbitrary code on affected installations of pdfforge PDF Architect. 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.

— ZDI

Affected Software

2 affected components
pdfforge PDF Architect
pdfforge PDF Architect

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch ZDI-26-611
  2. Compensating control

    Mitigate exploitation by preventing users from opening malicious files or visiting malicious web pages (since user interaction is required to exploit the remote code execution vulnerability).

Event History

Aug 31, 2026
Advisory Published
via ZDI·12:00 AM
Data Sourced
via ZDI·12:00 AM
DescriptionSeverityAffected Software
Advisory Published
via ZDI·05:00 AM

Frequently Asked Questions

1

What must an attacker do to exploit this issue?

The attacker must persuade the target to visit a malicious page or open a malicious file. Successful exploitation can result in arbitrary code execution on the affected installation.

2

Is exploitation possible without user interaction?

No. The available information states that user interaction is required, specifically visiting a malicious page or opening a malicious file.

Contact

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