ZDI-25-070: 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.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-0903.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-070?
ZDI-25-070 has a critical severity level due to its potential for remote code execution.
How do I fix ZDI-25-070?
To fix ZDI-25-070, ensure you update your PDF-XChange Editor to the latest version provided by Tracker Software.
What type of attacks can exploit ZDI-25-070?
ZDI-25-070 can be exploited through malicious pages or files requiring user interaction.
What software is affected by ZDI-25-070?
ZDI-25-070 affects installations of PDF-XChange Editor by Tracker Software.
Is user interaction needed to exploit ZDI-25-070?
Yes, user interaction is required as the victim must either visit a malicious page or open a compromised file.