PDF-XChange Editor 10.5.2.395 PRC File Parser out-of-bounds

Summaryinfo

A vulnerability was found in PDF-XChange Editor 10.5.2.395. It has been classified as problematic. This impacts an unknown function of the component PRC File Parser. This manipulation causes out-of-bounds. This vulnerability is tracked as CVE-2025-6656. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in PDF-XChange Editor 10.5.2.395. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component PRC File Parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

PDF-XChange Editor PRC File Parsing Out-Of-Bounds Read 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 PRC files. 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 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-26731.

It is possible to read the advisory at zerodayinitiative.com. This vulnerability is known as CVE-2025-6656 since 06/25/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19158). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Document Reader Software

Vendor

• PDF-XChange

Name

• Editor

Version

• 10.5.2.395

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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