CVE-2025-58290 identifies a denial of service vulnerability in Huawei's HarmonyOS, specifically affecting the office service component in versions 5.1.0 and 5.0.1. The root cause is an improper resolution of path equivalence (CWE-41), which means the system fails to correctly handle different path representations that should be treated as identical. This flaw can be exploited by an attacker with local access and requiring user interaction to trigger a denial of service condition, leading to the unavailability of the office service. The vulnerability does not impact confidentiality or integrity, focusing solely on availability. The CVSS 3.1 base score is 3.3, reflecting low severity due to the need for local access and user interaction, and the limited scope of impact. No public exploits have been reported, and no patches are currently linked, indicating that the vulnerability is newly disclosed and may require monitoring for updates. The improper path resolution could cause the office service to crash or become unresponsive, disrupting normal operations on affected devices running HarmonyOS. This vulnerability highlights the importance of secure path handling in operating system services to prevent denial of service conditions.

For European organizations, the primary impact is service disruption of office-related functionalities on Huawei HarmonyOS devices, potentially affecting productivity and operational continuity. Since the vulnerability requires local access and user interaction, remote exploitation is unlikely, reducing the risk of widespread attacks. However, organizations with Huawei device deployments in corporate or governmental environments could face targeted attempts to disrupt availability. The impact is more pronounced in sectors relying heavily on Huawei's HarmonyOS ecosystem for office services, such as telecommunications, public administration, and enterprises with Huawei-based mobile or IoT devices. Disruptions could lead to temporary loss of access to critical office applications, affecting workflows and collaboration. Given the low severity, the overall risk is moderate but should be managed proactively to avoid escalation or exploitation in combination with other vulnerabilities.

1. Monitor Huawei's official channels for patches or updates addressing CVE-2025-58290 and apply them promptly once available. 2. Limit local access to devices running affected HarmonyOS versions by enforcing strict physical and logical access controls, including device lock policies and user authentication. 3. Educate users about the risk of interacting with untrusted content or applications that might trigger the vulnerability, reducing the likelihood of successful exploitation. 4. Implement endpoint detection and response (EDR) solutions capable of monitoring and alerting on abnormal behavior or crashes in the office service. 5. Consider network segmentation to isolate critical devices running HarmonyOS, minimizing the impact of any local compromise. 6. Maintain regular backups of critical data and configurations to enable rapid recovery in case of service disruption. 7. Conduct periodic security assessments of Huawei device deployments to identify and remediate potential weaknesses related to local access and user interaction.