CVE-2025-62206 is a vulnerability classified under CWE-200, indicating an exposure of sensitive information to unauthorized actors within Microsoft Dynamics 365 (on-premises) version 9.1, specifically affecting version 9.0 as well. The flaw allows an attacker to disclose sensitive data over a network without requiring privileges (PR:N) but does require user interaction (UI:R), such as clicking a crafted link or interacting with malicious content. The attack vector is network-based (AV:N), meaning the attacker can exploit it remotely. The vulnerability impacts confidentiality (C:H) but does not affect integrity (I:N) or availability (A:N). The CVSS v3.1 score is 6.5, indicating a medium severity level. No known public exploits or patches are currently available, but the vulnerability has been officially published and reserved by Microsoft. The exposure likely stems from improper access controls or insufficient data sanitization within the Dynamics 365 on-premises environment, potentially allowing attackers to retrieve sensitive business or customer data. Since Dynamics 365 is widely used in enterprise environments for CRM and ERP functions, this vulnerability could lead to significant data leakage if exploited.

For European organizations, the exposure of sensitive information can lead to breaches of GDPR and other data protection regulations, resulting in legal penalties and reputational damage. Organizations relying on Microsoft Dynamics 365 on-premises installations, particularly version 9.0 and 9.1, face risks of unauthorized data disclosure, which could include customer data, financial records, or internal business information. This can undermine trust with clients and partners and may facilitate further attacks such as social engineering or targeted phishing. The medium severity suggests that while the vulnerability is serious, it does not allow system takeover or data manipulation, limiting the scope to confidentiality breaches. However, given the critical role of Dynamics 365 in business operations, even data exposure incidents can have significant operational and compliance impacts.

1. Monitor Microsoft’s official security advisories closely and apply patches or updates as soon as they become available for Dynamics 365 on-premises versions 9.0 and 9.1. 2. Restrict network access to Dynamics 365 servers using firewalls and network segmentation to limit exposure to untrusted networks. 3. Implement strict access controls and multi-factor authentication for users accessing Dynamics 365 to reduce the risk of unauthorized access. 4. Educate users about the risks of interacting with unsolicited links or attachments to mitigate the user interaction requirement for exploitation. 5. Enable detailed logging and monitoring on Dynamics 365 servers to detect unusual access patterns or data exfiltration attempts. 6. Conduct regular security assessments and penetration testing focused on Dynamics 365 environments to identify and remediate potential weaknesses. 7. Consider deploying web application firewalls (WAFs) or intrusion detection/prevention systems (IDS/IPS) to detect and block suspicious network traffic targeting Dynamics 365.