CVE-2025-9326 is a high-severity vulnerability identified in Foxit PDF Reader version 2024.4.0.27683. The flaw is an out-of-bounds read (CWE-125) occurring during the parsing of PRC files, a format used for 3D content embedded within PDFs. Specifically, the vulnerability arises from inadequate validation of user-supplied data, allowing the application to read beyond the allocated buffer boundaries. This memory corruption can be exploited by remote attackers to execute arbitrary code within the context of the Foxit PDF Reader process. Exploitation requires user interaction, such as opening a maliciously crafted PDF file containing a malformed PRC object or visiting a malicious webpage that triggers the vulnerability. The CVSS v3.0 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity, no privileges required, but user interaction necessary. Although no public exploits are currently known, the vulnerability was reported via the Zero Day Initiative (ZDI) and is publicly disclosed as of September 2025. The lack of a patch link suggests that a fix may not yet be available, increasing the urgency for mitigation. This vulnerability enables remote code execution, which can lead to full system compromise if exploited successfully.

For European organizations, this vulnerability poses a significant risk, especially those relying on Foxit PDF Reader for document handling, including sectors such as finance, government, legal, and healthcare where PDF usage is prevalent. Successful exploitation could lead to unauthorized disclosure of sensitive information, data manipulation, or disruption of critical services. Since the attack vector involves user interaction, phishing campaigns or malicious document distribution could be leveraged by threat actors to target employees. The ability to execute arbitrary code remotely could facilitate lateral movement within networks, data exfiltration, or deployment of ransomware. Given the widespread use of Foxit PDF Reader in Europe, the vulnerability could impact both private enterprises and public institutions, potentially affecting data privacy compliance under GDPR if personal data is compromised.

European organizations should immediately implement the following mitigations: 1) Restrict or monitor the use of Foxit PDF Reader version 2024.4.0.27683, and consider temporarily disabling PRC file parsing features if configurable. 2) Educate users to be cautious with unsolicited PDF files, especially those received via email or downloaded from untrusted sources, emphasizing the risk of opening unknown attachments. 3) Employ advanced email filtering and endpoint security solutions capable of detecting and blocking malicious PDFs or exploit attempts targeting this vulnerability. 4) Monitor network and endpoint logs for suspicious activity indicative of exploitation attempts, such as anomalous process behavior or unexpected network connections originating from PDF reader processes. 5) Coordinate with Foxit for timely patch deployment once available, and prioritize patching in asset management systems. 6) Implement application whitelisting or sandboxing for PDF readers to limit the impact of potential code execution. 7) Review and enhance incident response plans to address potential exploitation scenarios involving PDF-based attacks.