Overview

On May 8, 2025, Microsoft disclosed a critical remote code execution (RCE) vulnerability identified as CVE-2025-47732, affecting Microsoft Dataverse. This vulnerability arises from the deserialization of untrusted data, allowing attackers with low privileges to execute arbitrary code remotely when users interact with maliciously crafted web content. (feedly.com)

Background on Microsoft Dataverse

Microsoft Dataverse is a cloud-based data storage and management service that underpins various applications within the Microsoft Power Platform, including Power Apps, Power Automate, and Power BI. It enables organizations to securely store and manage data used by business applications.

Technical Details

The vulnerability is classified under CWE-502: Deserialization of Untrusted Data. Deserialization vulnerabilities occur when an application processes serialized data without proper validation, potentially leading to code execution. In the case of CVE-2025-47732, an attacker can exploit this flaw by sending specially crafted data to a Dataverse instance, resulting in the execution of arbitrary code within the context of the affected service. (feedly.com)

The Common Vulnerability Scoring System (CVSS) v3.1 rates this vulnerability with a base score of 8.7, indicating a high severity level. The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N, which translates to:

  • Attack Vector (AV): Network
  • Attack Complexity (AC): Low
  • Privileges Required (PR): Low
  • User Interaction (UI): Required
  • Scope (S): Changed
  • Confidentiality (C): High
  • Integrity (I): High
  • Availability (A): None

This indicates that an attacker with low privileges can exploit the vulnerability over a network, requiring user interaction, and potentially compromising the confidentiality and integrity of the system. (tenable.com)

Implications and Impact

Exploitation of CVE-2025-47732 could lead to:

  • Remote Code Execution: Attackers can execute arbitrary code on the affected system.
  • Data Breaches: Unauthorized access to sensitive information stored within Dataverse.
  • System Compromise: Potential for attackers to gain control over the affected environment, leading to further exploitation or disruption of services.

Given the widespread use of Microsoft Dataverse in enterprise environments, the potential impact of this vulnerability is significant, necessitating immediate attention and remediation.

Mitigation and Defense Strategies

To protect against CVE-2025-47732, organizations should implement the following measures:

  1. Apply Security Updates: Microsoft has released patches addressing this vulnerability. Organizations should apply these updates promptly to mitigate the risk. (tenable.com)
  2. Implement Input Validation: Ensure that all data inputs are properly validated to prevent the processing of maliciously crafted data.
  3. Monitor Network Activity: Regularly monitor network traffic for unusual or suspicious activities that may indicate exploitation attempts.
  4. Limit User Privileges: Adopt the principle of least privilege, ensuring users have only the access necessary for their roles, thereby reducing the potential impact of an exploit.
  5. User Education: Educate users about the risks associated with interacting with untrusted web content and the importance of vigilance against phishing and social engineering attacks.

Conclusion

CVE-2025-47732 represents a critical security concern for organizations utilizing Microsoft Dataverse. By understanding the nature of this vulnerability and implementing the recommended mitigation strategies, organizations can significantly reduce their risk exposure and enhance their overall security posture.