CVE-2025-6661

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.

The following products are affected by CVE-2025-6661 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-6661.

URL	Resource
https://www.pdf-xchange.com/support/security-bulletins.html
https://www.zerodayinitiative.com/advisories/ZDI-25-446/