CVE-2025-0903
PDF-XChange Editor vulnerability analysis and mitigation

Overview

CVE-2025-0903 is a heap-based buffer overflow vulnerability discovered in PDF-XChange Editor's RTF file parsing functionality. The vulnerability was initially reported on October 1, 2024, and publicly disclosed on January 31, 2025. This security flaw affects PDF-XChange Editor versions prior to 10.4.2.390 (ZDI Advisory, NVD).

Technical details

The vulnerability stems from improper validation of user-supplied data length during RTF file parsing, which can lead to a heap-based buffer overflow condition. The issue has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-787 (Out-of-bounds Write) and CWE-122 (Heap-based Buffer Overflow) (NVD).

Impact

If successfully exploited, this vulnerability allows attackers to execute arbitrary code in the context of the current process on affected installations of PDF-XChange Editor. The high CVSS score indicates potential severe impacts on system confidentiality, integrity, and availability (ZDI Advisory).

Mitigation and workarounds

The vulnerability has been patched in PDF-XChange Editor version 10.4.2.390. Users are advised to upgrade to this version or later to mitigate the risk (ZDI Advisory).

Additional resources


SourceThis report was generated using AI

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