Buffer overflow in Pdf-Xchange Editor
CVE-2025-0903
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.006 · change: -0.002
Affected products
- Pdf-Xchange Editor — versions 10.4.0.388
- Pdf-Xchange Editor
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-25-070/ (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-0903?
- CVE-2025-0903 is a high-severity vulnerability in Pdf-Xchange Editor, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2025-02-11.
- How severe is CVE-2025-0903?
- High severity. CVSS v3 base score is 8.8 out of 10.