CVE-2025-55320 is a vulnerability classified under CWE-89 (SQL Injection) affecting Microsoft Configuration Manager version 1.0.0. The vulnerability stems from improper neutralization of special characters in SQL commands, which allows an attacker with authorized local access and high privileges to inject malicious SQL code. This can lead to privilege escalation, enabling the attacker to gain unauthorized access to sensitive data, modify system configurations, or disrupt system availability. The CVSS 3.1 base score is 6.7, reflecting a medium severity level, with attack vector local (AV:L), low attack complexity (AC:L), and requiring high privileges (PR:H). No user interaction is needed (UI:N), and the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). The vulnerability does not currently have known exploits in the wild, and no patches have been released as of the published date. The issue was reserved in August 2025 and published in October 2025. The vulnerability affects only version 1.0.0 of Microsoft Configuration Manager, a widely used enterprise tool for managing large groups of Windows-based computers. Exploitation requires an attacker to already have high-level privileges and local access, limiting the attack surface but still posing a significant risk in environments where local privilege escalation can lead to full system compromise.

For European organizations, this vulnerability could lead to unauthorized privilege escalation within IT management infrastructure, potentially compromising the confidentiality, integrity, and availability of managed systems. Since Microsoft Configuration Manager is commonly used in enterprise environments for software deployment, patch management, and configuration, exploitation could allow attackers to manipulate system configurations, deploy malicious software, or disrupt operations. This risk is particularly critical for sectors with stringent regulatory requirements such as finance, healthcare, and government, where data breaches or system outages can have severe legal and operational consequences. The requirement for local high privileges reduces the likelihood of remote exploitation but increases the importance of internal security controls and monitoring. Organizations with large, distributed IT environments using Configuration Manager must be vigilant to prevent insider threats or lateral movement by attackers who have gained initial access.

1. Monitor and restrict local administrative access to systems running Microsoft Configuration Manager to trusted personnel only. 2. Implement strict role-based access controls (RBAC) and regularly audit user privileges to minimize the number of users with high-level local privileges. 3. Employ application whitelisting and endpoint detection and response (EDR) solutions to detect anomalous SQL command executions or privilege escalation attempts. 4. Once available, promptly apply official patches or updates from Microsoft addressing CVE-2025-55320. 5. Conduct regular security assessments and penetration testing focusing on privilege escalation vectors within Configuration Manager environments. 6. Use network segmentation to isolate management servers and limit lateral movement opportunities. 7. Maintain comprehensive logging and monitoring of Configuration Manager activities to detect suspicious behavior early. 8. Educate IT staff about the risks of SQL injection vulnerabilities and the importance of secure coding and configuration practices.