CVE-2025-64315 is a vulnerability identified in Huawei's HarmonyOS version 5.1.0, specifically within the file management module. The root cause is a configuration defect related to permissions, privileges, and access controls (classified under CWE-264). This defect allows unauthorized or insufficiently authorized access to app data, potentially compromising its confidentiality and integrity. The vulnerability requires local access (AV:L), has low attack complexity (AC:L), does not require privileges (PR:N), but does require user interaction (UI:R). The scope remains unchanged (S:U), meaning the impact is confined to the vulnerable component without affecting other system components. The CVSS v3.1 base score is 4.4, indicating a medium severity level. Exploitation could allow an attacker to read or modify app data improperly, but it does not affect system availability. No known exploits have been reported in the wild, and no patches are currently linked, suggesting that mitigation is pending. The vulnerability highlights the importance of correct permission configurations in OS modules managing sensitive data. Given Huawei's market presence in mobile and IoT devices running HarmonyOS, this vulnerability could be leveraged in targeted attacks where local access is feasible, such as through malicious apps or social engineering to induce user interaction.

For European organizations, the impact of CVE-2025-64315 primarily concerns confidentiality and integrity of application data on Huawei HarmonyOS devices. Organizations relying on Huawei smartphones, tablets, or IoT devices running version 5.1.0 could face risks of data leakage or unauthorized data modification if attackers gain local access and trick users into interaction. This could affect sensitive corporate or personal information stored within apps, potentially leading to data breaches or manipulation of critical app data. Although availability is not impacted, the breach of confidentiality and integrity can undermine trust and compliance with data protection regulations such as GDPR. The risk is heightened in sectors with high Huawei device adoption or where employees use such devices for work purposes. Since exploitation requires local access and user interaction, remote attacks are less likely, but insider threats or physical device access scenarios remain relevant. The absence of known exploits reduces immediate risk but does not eliminate future exploitation potential.

1. Monitor Huawei's official security advisories closely and apply patches or updates for HarmonyOS 5.1.0 as soon as they become available to address this vulnerability. 2. Restrict physical and local access to Huawei devices within organizational environments to trusted personnel only. 3. Educate users about the risks of interacting with untrusted applications or prompts that could trigger exploitation of local vulnerabilities. 4. Implement mobile device management (MDM) solutions to enforce strict app installation policies and permissions on HarmonyOS devices. 5. Conduct regular audits of file management permissions and access controls on affected devices to detect misconfigurations or anomalies. 6. Where possible, isolate sensitive applications or data using containerization or sandboxing techniques to limit the impact of potential exploits. 7. Encourage users to report suspicious behavior promptly and maintain incident response readiness for potential local compromise scenarios.