CVE-2025-64670 is a vulnerability identified in the Microsoft Graphics Component of Windows Server 2022 (build 10.0.20348.0). It is classified under CWE-200, indicating an exposure of sensitive information to unauthorized actors. The vulnerability allows an attacker with authorized access and low complexity to disclose sensitive information over a network without requiring user interaction. The CVSS 3.1 base score is 6.5 (medium), with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, meaning the attack can be performed remotely over the network, requires low attack complexity, privileges at the level of an authorized user, no user interaction, and impacts confidentiality with high severity but does not affect integrity or availability. The flaw resides in the graphics component, which may handle rendering or graphical data processing, potentially leaking sensitive graphical or memory data to an attacker. No known exploits have been reported in the wild, and no official patches have been released yet, though the vulnerability is publicly disclosed. The exposure of sensitive information could include credentials, configuration data, or other critical information that could facilitate further attacks or data breaches. The vulnerability's exploitation scope is limited to environments running the specified Windows Server 2022 version and requires an attacker to have some level of authorized access, which may limit the attack surface but still poses a significant risk in multi-tenant or network-exposed environments.

For European organizations, the exposure of sensitive information could lead to data breaches, loss of confidentiality, and potential escalation of privileges if attackers leverage disclosed data for further attacks. Sectors such as finance, healthcare, government, and critical infrastructure that rely heavily on Windows Server 2022 for backend services and graphical processing may face increased risks. The vulnerability could enable attackers to extract sensitive configuration or credential data, undermining trust and compliance with data protection regulations like GDPR. Although integrity and availability are not directly impacted, the confidentiality breach alone can cause reputational damage, regulatory penalties, and operational disruptions if exploited. Organizations with remote or network-exposed Windows Server 2022 instances are particularly vulnerable, especially if internal network segmentation and access controls are weak. The absence of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits following public disclosure.

1. Monitor Microsoft security advisories closely and apply official patches or updates immediately once released to address CVE-2025-64670. 2. Restrict network access to Windows Server 2022 graphics components by implementing strict firewall rules and network segmentation to limit exposure to authorized users only. 3. Employ the principle of least privilege to reduce the number of users with access rights sufficient to exploit this vulnerability. 4. Use network intrusion detection and prevention systems (IDS/IPS) to detect anomalous traffic patterns related to graphics component communications. 5. Conduct regular audits of server configurations and access logs to identify unauthorized access attempts or suspicious activities. 6. Consider disabling or isolating non-essential graphical services on Windows Server 2022 instances if feasible. 7. Educate system administrators about the vulnerability and encourage vigilance in monitoring and incident response readiness. 8. Implement multi-factor authentication (MFA) for administrative access to reduce the risk of credential compromise that could facilitate exploitation.