CVE-2025-24986 is a vulnerability identified in Microsoft Azure promptflow-core version 1.0.0, classified under CWE-653, which refers to improper isolation or compartmentalization. This security flaw arises when the software fails to adequately isolate components or processes, allowing an attacker to bypass intended boundaries. Specifically, this vulnerability enables an unauthorized attacker to execute arbitrary code remotely over the network without requiring any authentication or user interaction. The vulnerability affects the confidentiality and integrity of the system by potentially allowing unauthorized access to sensitive data and manipulation of system behavior. However, it does not impact availability, meaning the system remains operational despite the exploit. The CVSS 3.1 base score is 6.5 (medium severity), with vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and impact on confidentiality and integrity but not availability. No patches or exploits are currently publicly available, but the vulnerability is officially published and recognized by CISA. The root cause is the failure of Azure promptflow-core to properly isolate execution contexts, which could allow malicious actors to run unauthorized code remotely, potentially compromising cloud workloads or data processed by promptflow-core. This vulnerability is significant given the increasing adoption of Azure cloud services and the critical role of promptflow-core in managing AI workflows and data processing pipelines.

For European organizations, this vulnerability poses a risk of unauthorized remote code execution within Azure environments using promptflow-core, potentially leading to data breaches, unauthorized data manipulation, or lateral movement within cloud infrastructure. Confidentiality and integrity of sensitive information processed or stored via promptflow-core could be compromised. Although availability is not directly affected, the indirect consequences of data compromise or system manipulation could disrupt business operations or erode trust. Organizations relying on Azure for AI workflows, data analytics, or cloud-native applications are particularly vulnerable. The lack of required authentication or user interaction lowers the barrier for exploitation, increasing risk. Given the widespread use of Azure in Europe, especially in sectors like finance, healthcare, and government, the vulnerability could have significant operational and regulatory impacts, including GDPR compliance issues if personal data is exposed or altered.

1. Monitor Microsoft’s official channels for patches or updates addressing CVE-2025-24986 and apply them promptly once released. 2. Until patches are available, restrict network access to Azure promptflow-core services using network segmentation, firewall rules, and Azure network security groups to limit exposure to untrusted networks. 3. Implement strict access controls and monitoring on Azure environments, focusing on detecting anomalous or unauthorized code execution attempts within promptflow-core. 4. Use Azure Security Center and related cloud security posture management tools to continuously assess and harden configurations related to promptflow-core. 5. Employ logging and alerting mechanisms to capture suspicious activities, enabling rapid incident response. 6. Educate cloud administrators and DevOps teams about this vulnerability to ensure awareness and readiness to respond. 7. Consider isolating critical workloads or sensitive data processing pipelines from promptflow-core until the vulnerability is mitigated. 8. Review and enforce the principle of least privilege for all identities and services interacting with promptflow-core components.