CVE-2025-6661

PDF-XChange Editor App Object Use-After-Free Remote Code Execution Vulnerability

Published Jun 25, 2025 CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Description
PDF-XChange Editor App Object Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26823.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-19163 PDF-XChange Editor App Object Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26823.
History
Type Values Removed Values Added
First Time appeared Pdf-xchange
Pdf-xchange pdf-tools
Pdf-xchange pdf-xchange Editor
CPEs cpe:2.3:a:pdf-xchange:pdf-tools:10.5.2.395:*:*:*:*:*:*:*
cpe:2.3:a:pdf-xchange:pdf-xchange_editor:10.5.2.395:*:*:*:*:*:*:*
Vendors & Products Pdf-xchange
Pdf-xchange pdf-tools
Pdf-xchange pdf-xchange Editor
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description PDF-XChange Editor App Object Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26823.
Title PDF-XChange Editor App Object Use-After-Free Remote Code Execution Vulnerability
Weaknesses CWE-416
References
Metrics cvssV3_0

{'score': 7.8, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
zdi
Published
Updated
Jun 26, 2025, 2:15 PM
Reserved
Jun 25, 2025, 2:31 PM
Status
Analyzed
Published
Jun 25, 2025, 10:15 PM
Modified
Jun 17, 2026, 10:02 AM