CVE-2025-55320 is an SQL injection vulnerability identified in Microsoft Configuration Manager version 1.0.0. The root cause is improper neutralization of special elements used in SQL commands, classified under CWE-89. This flaw allows an attacker who is authorized and has high privileges on an adjacent network to inject malicious SQL code into the Configuration Manager’s database queries. Exploiting this vulnerability can result in unauthorized data disclosure, modification, or deletion, effectively compromising confidentiality, integrity, and availability of the system. The attack vector requires network access adjacent to the vulnerable system and elevated privileges, but no user interaction is necessary. The vulnerability was published on October 14, 2025, with a CVSS v3.1 base score of 6.8, indicating medium severity. No public exploits or patches are currently available, but the vulnerability is confirmed and documented by Microsoft. Given the Configuration Manager’s role in managing software deployments, updates, and configurations across enterprise environments, exploitation could enable attackers to escalate privileges further or disrupt IT operations.

For European organizations, this vulnerability could lead to significant operational disruptions and data breaches, especially in enterprises heavily reliant on Microsoft Configuration Manager for IT asset management. Confidential data stored or managed through Configuration Manager databases could be exposed or altered, leading to compliance violations under GDPR and other data protection regulations. Integrity loss could result in unauthorized software deployments or configuration changes, potentially introducing malware or causing system outages. Availability impacts could disrupt critical IT services, affecting business continuity. The requirement for adjacent network access and high privileges somewhat limits the attack surface but does not eliminate risk, particularly in complex network environments with insufficient segmentation. Organizations in sectors such as finance, healthcare, government, and critical infrastructure in Europe are particularly vulnerable due to the strategic importance of their IT systems and regulatory scrutiny.

European organizations should implement the following specific mitigations: 1) Monitor Microsoft’s security advisories closely and apply patches or updates for Configuration Manager as soon as they become available. 2) Restrict network access to Configuration Manager servers by enforcing strict network segmentation and firewall rules to limit adjacent network exposure. 3) Enforce the principle of least privilege rigorously to minimize the number of users with high privileges capable of exploiting this vulnerability. 4) Conduct regular security audits and code reviews of custom scripts or extensions interacting with Configuration Manager to detect injection flaws. 5) Enable detailed logging and monitoring on Configuration Manager to detect anomalous SQL queries or privilege escalation attempts. 6) Consider deploying Web Application Firewalls (WAFs) or database activity monitoring tools that can detect and block SQL injection attempts. 7) Educate IT staff about the risks of SQL injection and the importance of secure coding and configuration management practices.