CVE-2025-8432 is a vulnerability classified under CWE-276 (Incorrect Default Permissions) found in Centreon Infra Monitoring's MBI modules. It affects versions 23.10.0 before 23.10.15, 24.04.0 before 24.04.9, and 24.10.0 before 24.10.6. The flaw arises because the CentreonBI user account on the MBI server is assigned overly permissive default permissions, allowing it to embed scripts within other scripts. This capability can be exploited to execute arbitrary code or escalate privileges within the monitoring infrastructure. The vulnerability requires the attacker to have high privileges (PR:H) and some user interaction (UI:R), but it can lead to a complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). The scope is changed (S:C), indicating that the vulnerability affects resources beyond the initially vulnerable component. Centreon Infra Monitoring is widely used in enterprise and critical infrastructure environments for monitoring IT and network infrastructure, making this vulnerability particularly impactful. Although no exploits have been observed in the wild yet, the high CVSS score (8.4) underscores the potential severity. The vulnerability was publicly disclosed on October 27, 2025, with no official patches linked in the provided data, but fixed versions are indicated by version numbers beyond the affected ones. The issue demands immediate remediation to prevent attackers from leveraging the incorrect permissions to embed malicious scripts and compromise monitoring systems.

For European organizations, the impact of CVE-2025-8432 can be severe. Centreon Infra Monitoring is often deployed in large enterprises, government agencies, and critical infrastructure sectors such as energy, transportation, and telecommunications. Exploitation could allow attackers to execute arbitrary scripts within the monitoring environment, potentially leading to unauthorized access to sensitive monitoring data, manipulation of monitoring outputs, and disruption of infrastructure monitoring services. This can result in undetected outages, delayed incident response, and cascading failures in critical systems. The compromise of monitoring infrastructure also undermines trust in security operations and can facilitate further lateral movement within networks. Given the high privileges required, exploitation might be limited to insiders or attackers who have already gained elevated access, but the consequences remain significant. The vulnerability's ability to affect confidentiality, integrity, and availability simultaneously makes it a critical risk for European organizations reliant on Centreon for infrastructure visibility and operational continuity.

1. Immediately upgrade Centreon Infra Monitoring to the patched versions: 23.10.15 or later, 24.04.9 or later, and 24.10.6 or later as applicable. 2. Conduct a thorough audit of the CentreonBI user account permissions on the MBI server to ensure they follow the principle of least privilege, removing any unnecessary script embedding capabilities. 3. Restrict access to the MBI server and CentreonBI account to trusted administrators only, employing strong authentication mechanisms such as multi-factor authentication (MFA). 4. Monitor logs and alerts for unusual script execution or embedding activities within the Centreon environment to detect potential exploitation attempts early. 5. Implement network segmentation to isolate the monitoring infrastructure from general user networks to limit lateral movement in case of compromise. 6. Regularly review and update security policies related to monitoring tools and user permissions to prevent recurrence of similar issues. 7. Engage with Centreon support or security advisories to obtain official patches and follow recommended hardening guidelines specific to the MBI modules.