CVE-2025-0905
Published: 11 February 2025
Summary
CVE-2025-0905 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Pdf-Xchange Pdf-Xchange Editor. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 36.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the out-of-bounds read flaw in JB2 file parsing within PDF-XChange Editor through timely patching and flaw correction.
Addresses the root cause of the vulnerability by enforcing validation of user-supplied data such as JB2 files to prevent reads past allocated objects.
Provides memory protection mechanisms that mitigate out-of-bounds read exploits and potential information disclosure or code execution.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Out-of-bounds read in PDF parsing enables info disclosure and chained RCE via malicious file opened by user (T1204.002) or client-side exploitation (T1203).
NVD 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…
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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 object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-25433.
Deeper analysisAI
CVE-2025-0905 is an out-of-bounds read information disclosure vulnerability in the JB2 file parsing component of PDF-XChange Editor. The issue stems from a lack of proper validation of user-supplied data, resulting in a read past the end of an allocated object. This flaw affects installations of PDF-XChange Editor and was originally tracked as ZDI-CAN-25433.
Remote attackers can exploit the vulnerability to disclose sensitive information, but user interaction is required, such as the target visiting a malicious web page or opening a malicious file. While primarily an information disclosure issue, attackers can leverage it in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. The CVSS v3.1 base score is 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), mapped to CWE-125.
The Zero Day Initiative advisory ZDI-25-067, available at https://www.zerodayinitiative.com/advisories/ZDI-25-067/, provides additional details on the vulnerability.
Details
- CWE(s)