CVE-2025-29826 is a high-severity vulnerability identified in Microsoft Dataverse version 10.0, categorized under CWE-280, which pertains to the improper handling of insufficient permissions or privileges. This vulnerability allows an authorized attacker—meaning someone who already has some level of access—to elevate their privileges over a network. The flaw arises because Microsoft Dataverse does not correctly enforce permission checks, enabling an attacker with limited privileges to perform actions or access data beyond their authorized scope. The vulnerability is exploitable remotely (network attack vector) with low attack complexity, requiring the attacker to have some privileges and user interaction. The impact includes high confidentiality and integrity loss, as the attacker can gain unauthorized access and potentially manipulate sensitive data, though availability is not affected. The CVSS 3.1 base score is 7.3, reflecting the significant risk posed by this vulnerability. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that organizations should prioritize monitoring and mitigation efforts. The vulnerability affects Microsoft Dataverse 10.0, a cloud-based data platform widely used for business applications and data integration within the Microsoft Power Platform ecosystem.

For European organizations, the impact of CVE-2025-29826 can be substantial, especially for those relying on Microsoft Dataverse for critical business processes, customer data management, and integration workflows. An attacker exploiting this vulnerability could escalate privileges and access sensitive or confidential data, leading to data breaches, intellectual property theft, or unauthorized data manipulation. This could result in regulatory non-compliance, particularly with GDPR, exposing organizations to legal penalties and reputational damage. The integrity of business data could be compromised, affecting decision-making and operational reliability. Since availability is not impacted, the threat primarily concerns data confidentiality and integrity. Organizations in sectors such as finance, healthcare, manufacturing, and public administration that use Microsoft Dataverse extensively are at higher risk. The network-based attack vector means that attackers could exploit this vulnerability remotely, increasing the threat surface for organizations with exposed or poorly segmented network environments.

To mitigate CVE-2025-29826 effectively, European organizations should: 1) Immediately review and tighten privilege assignments within Microsoft Dataverse, ensuring the principle of least privilege is strictly enforced. 2) Implement robust monitoring and logging of privilege escalation attempts and unusual access patterns within Dataverse environments. 3) Apply network segmentation and access controls to limit exposure of Dataverse services to only trusted networks and users. 4) Stay alert for official patches or updates from Microsoft and prioritize their deployment once available. 5) Conduct regular security assessments and penetration testing focused on permission and privilege management in Dataverse. 6) Educate administrators and users about the risks of privilege escalation and enforce multi-factor authentication to reduce the risk of compromised credentials being leveraged. 7) Consider implementing compensating controls such as data encryption at rest and in transit within Dataverse to reduce the impact of unauthorized access.