CVE-2025-6646: PDF-XChange Editor U3D File Parsing Use-After-Free Information Disclosure Vulnerability
PDF-XChange Editor U3D File Parsing Use-After-Free Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information 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 parsing of U3D files. 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 in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-26643.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6646?
CVE-2025-6646 is categorized as a medium severity vulnerability.
How do I fix CVE-2025-6646?
To mitigate CVE-2025-6646, users should update to the latest version of PDF-XChange Editor as provided by Tracker Software.
What type of vulnerability is CVE-2025-6646?
CVE-2025-6646 is a use-after-free vulnerability that can lead to information disclosure.
Who is affected by CVE-2025-6646?
CVE-2025-6646 affects installations of PDF-XChange Editor that process U3D files.
What is required for an attacker to exploit CVE-2025-6646?
Exploitation of CVE-2025-6646 requires user interaction with the affected software.