CVE-2025-58279 is a permission control vulnerability categorized under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) found in the media library module of Huawei's HarmonyOS. The flaw allows an attacker with low privileges and local access to exploit the vulnerability, potentially exposing sensitive information without affecting system integrity or availability. The vulnerability exists in HarmonyOS versions 5.0.1, 5.1.0, and 6.0.0. The CVSS v3.1 base score is 4.4, indicating medium severity, with an attack vector classified as local (AV:L), requiring low privileges (PR:L) and user interaction (UI:R), and high attack complexity (AC:H). The scope remains unchanged (S:U), and the impact is limited to confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). No patches or known exploits have been reported yet. The vulnerability arises from insufficient permission controls in the media library, which may allow unauthorized actors to access sensitive data stored or processed by this module. This could include personal media files or metadata that should be protected by the OS's permission model. The lack of integrity or availability impact suggests the vulnerability is primarily a data leakage issue rather than a system compromise or denial of service. The requirement for local access and user interaction limits the attack surface but does not eliminate risk, especially in environments where devices are shared or exposed to untrusted users.

For European organizations, the primary impact is the potential unauthorized disclosure of sensitive information stored or managed by Huawei devices running affected versions of HarmonyOS. This could lead to privacy violations, intellectual property exposure, or leakage of confidential corporate data, especially in sectors where Huawei devices are used for media handling or communication. The medium severity and local attack vector mean that remote exploitation is unlikely; however, insider threats or scenarios involving physical access to devices pose a risk. Organizations with Huawei-based mobile devices or IoT endpoints running HarmonyOS may face compliance challenges with GDPR if sensitive personal data is exposed. The absence of integrity or availability impact reduces the risk of operational disruption but does not mitigate the reputational and legal consequences of data leakage. The lack of known exploits in the wild provides a window for proactive mitigation before active attacks emerge.

1. Implement strict access controls and user authentication on all Huawei devices running affected HarmonyOS versions to limit local access to trusted users only. 2. Monitor device usage and local user activities to detect any unusual attempts to access media library data. 3. Enforce application-level permission audits to ensure that only authorized apps have access to media library resources. 4. Educate users about the risks of granting permissions and the importance of not interacting with untrusted applications or prompts. 5. Maintain an inventory of Huawei devices and their OS versions to identify and prioritize vulnerable endpoints. 6. Apply security updates and patches from Huawei promptly once they become available to remediate the vulnerability. 7. Consider deploying endpoint detection and response (EDR) solutions capable of monitoring local privilege misuse or suspicious file access patterns. 8. For highly sensitive environments, restrict or isolate Huawei devices until patches are applied or alternative devices are deployed.