CVE-2024-30076 is a vulnerability identified in Microsoft Windows 10 Version 1809, specifically within the Windows Container Manager Service. The root cause is improper link resolution before file access, classified under CWE-59 (Improper Link Resolution Before File Access or 'Link Following'). This vulnerability allows an attacker with low privileges and network access to manipulate symbolic links or junction points that the Container Manager Service follows improperly. By exploiting this flaw, an attacker can cause the service to access or modify files it should not, leading to an elevation of privilege. The vulnerability does not require user interaction but has a higher attack complexity due to the need for precise conditions to exploit the symbolic link behavior. The CVSS v3.1 base score is 6.8 (medium severity), with vector metrics indicating network attack vector, high attack complexity, low privileges required, no user interaction, unchanged scope, no confidentiality impact, but high integrity and availability impacts. No known exploits are currently reported in the wild, and no patches are linked yet, indicating that mitigation and detection are critical until official updates are available. The vulnerability primarily threatens the integrity and availability of affected systems by enabling unauthorized modification or disruption of container-related files and services.

For European organizations, this vulnerability poses a risk primarily to the integrity and availability of systems running Windows 10 Version 1809, especially those utilizing container technologies or Windows Container Manager Service. Successful exploitation could allow attackers to escalate privileges from low-level accounts to higher privileges, potentially leading to unauthorized changes in system configurations, disruption of containerized applications, or denial of service conditions. Critical infrastructure sectors, government agencies, and enterprises relying on legacy Windows 10 deployments may face operational disruptions or data integrity issues. Since the vulnerability requires network access, organizations with exposed or poorly segmented internal networks are at increased risk. The lack of confidentiality impact reduces the risk of data leakage but does not diminish the potential for operational damage or lateral movement within networks.

1. Apply the latest security updates from Microsoft as soon as they become available for Windows 10 Version 1809, prioritizing systems running container services. 2. Restrict network access to the Windows Container Manager Service using firewall rules and network segmentation to limit exposure to untrusted users. 3. Implement strict access controls and least privilege principles for accounts that can interact with container management services. 4. Monitor filesystem activity for suspicious symbolic link creation or manipulation, especially in directories related to container management. 5. Consider upgrading affected systems to a more recent and supported Windows version where this vulnerability is not present. 6. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous privilege escalation attempts and link manipulation behaviors. 7. Conduct regular security audits and vulnerability assessments focusing on container infrastructure and legacy Windows systems.