CVE-2024-7722 is a use-after-free vulnerability classified under CWE-416 found in Foxit PDF Reader version 2024.1.0.23997. The vulnerability specifically affects the handling of Doc objects within the application. The root cause is the failure to validate the existence of an object before performing operations on it, which leads to a use-after-free condition. Exploiting this flaw requires user interaction, such as opening a malicious PDF file or visiting a malicious web page that triggers the vulnerability. Successful exploitation allows remote attackers to disclose sensitive information from the affected system. Furthermore, this vulnerability can be chained with other vulnerabilities to achieve arbitrary code execution within the context of the Foxit PDF Reader process. The CVSS v3.0 base score is 3.3, reflecting low severity due to the requirement for user interaction, local attack vector, and limited impact on confidentiality only. There are currently no known exploits in the wild, and no patches have been linked yet. The vulnerability was assigned and published by the Zero Day Initiative (ZDI) under the identifier ZDI-CAN-23702. The issue highlights the importance of proper memory management and validation in PDF rendering engines, which are common targets for attackers due to their widespread use and complex parsing logic.

The primary impact of CVE-2024-7722 is information disclosure, which can lead to leakage of sensitive data from the victim's environment. While the vulnerability itself does not directly compromise system integrity or availability, the potential for chaining with other vulnerabilities to achieve arbitrary code execution raises the risk profile. Organizations relying on Foxit PDF Reader, especially in environments where sensitive documents are handled, may face confidentiality breaches if users are tricked into opening malicious PDFs. The requirement for user interaction limits the attack surface but does not eliminate risk, particularly in sectors with high exposure to targeted phishing or spear-phishing campaigns. The low CVSS score suggests limited immediate impact, but the possibility of escalation through combined exploits means organizations should not ignore this vulnerability. Failure to address it could lead to data leaks or footholds for further compromise in complex attack scenarios.

Organizations should monitor Foxit's official channels for patches addressing CVE-2024-7722 and apply updates promptly once available. Until patches are released, users should be advised to avoid opening PDF files from untrusted or unknown sources and to exercise caution when browsing websites that may host malicious content. Employing endpoint protection solutions with behavioral detection can help identify exploitation attempts. Network defenses such as email filtering, attachment sandboxing, and URL reputation services can reduce exposure to malicious PDFs and links. Administrators should consider restricting or monitoring the use of Foxit PDF Reader in high-risk environments and evaluate alternative PDF readers with a strong security track record. Additionally, implementing application whitelisting and sandboxing can limit the impact of potential exploitation. Regular user training on phishing awareness will reduce the likelihood of successful exploitation via social engineering.