CVE-2025-47152 is a medium-severity vulnerability classified under CWE-125 (Out-of-bounds Read) affecting PDF-XChange Editor version 10.6.0.396, specifically within its Enhanced Metafile (EMF) processing functionality. The vulnerability arises when the application processes a specially crafted EMF file that triggers an out-of-bounds read operation. This means the software reads memory outside the allocated buffer, potentially exposing sensitive information stored in adjacent memory regions. The attack vector is network-based (AV:N), requiring no privileges (PR:N), but does require user interaction (UI:R) to open the malicious file. The scope is unchanged (S:U), and the impact is high on confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). Although no exploits have been reported in the wild, the vulnerability poses a risk of information disclosure, which could be leveraged for further attacks or data leaks. The lack of an available patch at the time of publication means organizations must rely on interim mitigations. PDF-XChange Editor is widely used in document-intensive environments, making this vulnerability relevant for sectors like legal, finance, and government. The vulnerability highlights the risks inherent in processing complex file formats such as EMF within PDF viewers.

For European organizations, the primary impact of CVE-2025-47152 is the potential unauthorized disclosure of sensitive information through memory exposure when opening malicious EMF files embedded in PDFs. This can compromise confidentiality of internal documents, intellectual property, or personal data, potentially violating GDPR requirements. Sectors with high document handling volumes—such as legal firms, financial institutions, healthcare providers, and government agencies—are particularly at risk. While the vulnerability does not affect system integrity or availability, the leakage of sensitive data could lead to reputational damage, regulatory fines, and targeted follow-on attacks. Since exploitation requires user interaction, phishing or social engineering campaigns could be used to deliver malicious PDFs. The absence of a patch increases exposure duration, emphasizing the need for proactive defenses. Organizations relying on PDF-XChange Editor version 10.6.0.396 should consider this vulnerability a significant risk to data confidentiality.

1. Immediately restrict or monitor the use of PDF-XChange Editor version 10.6.0.396, especially for opening documents from untrusted or external sources. 2. Educate users to avoid opening unexpected or suspicious PDF files, particularly those containing embedded EMF content. 3. Employ advanced endpoint detection and response (EDR) tools capable of detecting anomalous memory access patterns or suspicious file behaviors related to EMF processing. 4. Use network-level controls to block or quarantine emails and downloads containing PDFs with embedded EMF files from untrusted origins. 5. Implement application whitelisting and sandboxing to limit the impact of potential exploitation. 6. Monitor vendor communications closely and apply patches or updates as soon as they become available. 7. Consider deploying PDF viewers with robust sandboxing or alternative software that does not process EMF files in the same manner. 8. Conduct regular security awareness training focusing on phishing and social engineering tactics that could deliver malicious PDFs. 9. Review and enhance data loss prevention (DLP) policies to detect unusual data access or exfiltration attempts that might follow exploitation.