CVE-2026-25323 identifies a Missing Authorization vulnerability in the MiKa OSM (Operational Support Management) product, affecting versions up to and including 6.1.12. The core issue stems from incorrectly configured access control security levels, which means that certain functions or data within the OSM system can be accessed without proper authorization checks. This type of vulnerability typically arises when the software fails to enforce role-based access control or other authorization mechanisms, allowing attackers to bypass restrictions and perform unauthorized actions. Although the exact technical details such as the specific endpoints or functions affected are not provided, the impact generally includes unauthorized access to sensitive operational data or the ability to manipulate system configurations. MiKa OSM is used primarily in telecommunications and network management environments, where operational support systems are critical for managing network resources and services. The absence of a CVSS score and lack of known exploits in the wild suggests this vulnerability is newly disclosed and may not yet be widely exploited. However, the nature of missing authorization vulnerabilities often makes them attractive targets for attackers, as they can lead to privilege escalation or data breaches without requiring complex exploitation techniques. The vulnerability was published on February 19, 2026, with the reservation date on February 2, 2026, indicating recent discovery. No patches or mitigation links are currently provided, so organizations must proactively assess their access control configurations and monitor for potential abuse. Given the critical role of OSM in network operations, exploitation could disrupt service management or expose sensitive operational data.

For European organizations, the impact of CVE-2026-25323 could be significant, especially for telecom operators and network service providers relying on MiKa OSM for operational support. Unauthorized access could lead to exposure of sensitive network management data, unauthorized changes to network configurations, or disruption of service management processes. This could compromise the confidentiality and integrity of operational data, potentially affecting service availability indirectly. The risk extends to regulatory compliance, as unauthorized access to network management systems may violate GDPR and other data protection regulations. Additionally, attackers exploiting this vulnerability could use the foothold to launch further attacks within the network, increasing the scope of impact. The absence of known exploits currently reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits rapidly after disclosure. Organizations with critical infrastructure managed via MiKa OSM could face operational disruptions and reputational damage if the vulnerability is exploited.

1. Immediately review and audit all access control configurations within MiKa OSM to ensure that authorization checks are correctly enforced for all functions and data access. 2. Implement strict role-based access control (RBAC) policies, limiting user privileges to the minimum necessary for their roles. 3. Monitor logs and system activity for unusual access patterns or unauthorized attempts to access restricted functions. 4. Engage with MiKa vendor support to obtain patches or updates addressing this vulnerability as soon as they become available. 5. If patches are not yet available, consider implementing compensating controls such as network segmentation, restricting access to OSM interfaces to trusted administrators only. 6. Conduct penetration testing focused on authorization bypass scenarios to identify and remediate potential weaknesses. 7. Train administrators and users on secure access management practices and the importance of adhering to least privilege principles. 8. Maintain up-to-date backups of configuration and operational data to enable recovery in case of compromise.