CVE-2025-25045 is a medium-severity vulnerability identified in IBM InfoSphere Information Server version 11.7. The issue is categorized under CWE-209, which involves the generation of error messages containing sensitive information. Specifically, an authenticated user interacting with the InfoSphere Information Server can trigger detailed technical error messages that inadvertently disclose sensitive internal information about the system. Such information leakage can include stack traces, configuration details, or other internal data that could aid an attacker in crafting more targeted and effective attacks against the system. The vulnerability requires the attacker to have valid authentication credentials, but no user interaction beyond that is necessary. The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low complexity and no user interaction, but limited impact confined to confidentiality, without affecting integrity or availability. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability was reserved in early 2025 and publicly disclosed in April 2025. The core risk lies in the exposure of sensitive diagnostic information that can facilitate reconnaissance and subsequent exploitation steps by malicious actors.

For European organizations using IBM InfoSphere Information Server 11.7, this vulnerability poses a moderate risk primarily related to information disclosure. The leakage of sensitive error details can enable attackers to gain insights into system architecture, software versions, and potential misconfigurations. This reconnaissance advantage could lead to more sophisticated attacks such as privilege escalation, lateral movement, or exploitation of other vulnerabilities. Given that InfoSphere Information Server is often used in data integration and enterprise data management, exposure of internal details could indirectly compromise data confidentiality or compliance with data protection regulations such as GDPR. While the vulnerability does not directly impact system integrity or availability, the potential for chained attacks leveraging this information could increase overall risk. European organizations with critical data processing workloads relying on InfoSphere should consider this vulnerability in their risk assessments and incident response planning.

To mitigate CVE-2025-25045, organizations should implement the following specific measures: 1) Restrict access to IBM InfoSphere Information Server interfaces strictly to trusted and necessary authenticated users, minimizing exposure. 2) Configure the server to suppress detailed error messages in production environments, ensuring that error handling routines do not reveal stack traces or internal system information. 3) Monitor and audit authentication logs and error logs for unusual access patterns or repeated error message generation that could indicate reconnaissance attempts. 4) Apply any vendor-provided patches or updates as soon as they become available. 5) Employ network-level controls such as web application firewalls (WAFs) to detect and block suspicious requests that may trigger error conditions. 6) Conduct regular security reviews and penetration testing focused on error handling and information leakage vectors. These steps go beyond generic advice by emphasizing configuration hardening, monitoring, and proactive detection tailored to this vulnerability's nature.