CVE-2025-0903: PDF-Xchange Editor

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

PDF-XChange Editor RTF File Parsing Heap-based Buffer Overflow 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 parsing of RTF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25421.

Affected products

• PDF-Xchange PDF-Xchange Editor: before 10.4.2.390 (fixed in 10.4.2.390)

Published 2025-02-11. Last modified 2026-06-17.