CVE-2025-6788 is a medium-severity vulnerability classified under CWE-668, which refers to the Exposure of Resource to Wrong Sphere. This vulnerability affects Schneider Electric's EcoStruxure™ Power Monitoring Expert product, specifically versions 2023, 2023 R2, 2024, and 2024 R2. The issue arises because TGML (presumably a proprietary or specialized diagram format used within the product) diagram resources are exposed to an incorrect control sphere. In practical terms, this means that authenticated users who should not have access to certain TGML diagrams may gain inappropriate visibility or access to these resources. The vulnerability does not require user interaction, nor does it require elevated privileges beyond authenticated user status (PR:L). The attack vector is network-based (AV:N), and the attack complexity is low (AC:L), indicating that exploitation could be straightforward once an attacker has valid credentials. The impact is limited to confidentiality (VC:L), with no impact on integrity, availability, or other security properties. No known exploits are currently reported in the wild, and no patches have been linked yet. This vulnerability could allow unauthorized disclosure of sensitive operational or configuration diagrams within the power monitoring environment, potentially aiding further reconnaissance or targeted attacks.

For European organizations, particularly those in critical infrastructure sectors such as energy and utilities, this vulnerability could lead to unauthorized disclosure of sensitive power monitoring diagrams. Such diagrams might reveal network topology, control logic, or operational parameters that could be leveraged by malicious actors to plan more sophisticated attacks or cause operational disruptions. Although the vulnerability does not directly impact system integrity or availability, the exposure of sensitive information could undermine operational security and increase the risk of insider threats or external attackers gaining strategic insights. Organizations relying on Schneider Electric's EcoStruxure™ Power Monitoring Expert for energy management and monitoring should consider the potential for lateral movement or privilege escalation attempts facilitated by this information exposure. The medium severity rating reflects the limited scope of impact but acknowledges the importance of confidentiality in industrial control systems.

1. Implement strict access control policies within EcoStruxure™ Power Monitoring Expert to ensure that user roles and permissions are tightly scoped and regularly reviewed to minimize unnecessary access to TGML diagrams. 2. Employ network segmentation and isolation for systems running EcoStruxure™ Power Monitoring Expert to limit exposure to authenticated users who do not require access to sensitive control spheres. 3. Monitor and audit user access logs specifically for TGML diagram resources to detect unusual access patterns or unauthorized attempts. 4. Coordinate with Schneider Electric for timely updates or patches addressing CVE-2025-6788 and apply them promptly once available. 5. Consider deploying additional compensating controls such as multi-factor authentication (MFA) for accessing the monitoring platform to reduce the risk of compromised credentials being used to exploit this vulnerability. 6. Conduct regular security awareness training for users with access to the system to highlight the importance of safeguarding credentials and recognizing suspicious activity.