CVE-2025-0906
Published: 11 February 2025
Description
PDF-XChange Editor JB2 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 JB2 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 buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-25434.
Security Summary
CVE-2025-0906 is an out-of-bounds read information disclosure vulnerability in the JB2 file parsing component of PDF-XChange Editor. The flaw stems from insufficient validation of user-supplied data during JB2 file processing, which can result in reading past the end of an allocated buffer and exposing sensitive information from affected installations. It carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) and is classified under CWE-125: Out-of-bounds Read.
Remote attackers can exploit this vulnerability through user interaction, such as inducing a target to visit a malicious web page or open a malicious file. No special privileges are required, and the low attack complexity enables attackers to disclose sensitive memory contents. When chained with other vulnerabilities, it can facilitate arbitrary code execution in the context of the PDF-XChange Editor process.
The Zero Day Initiative advisory ZDI-25-068, which canonized this as ZDI-CAN-25434, provides further technical details on the vulnerability. Security practitioners should consult this reference for recommended mitigations and any available patches.
Details
- CWE(s)