CVE-2025-58288 is a denial of service vulnerability identified in Huawei's HarmonyOS, specifically affecting the office service component in versions 5.0.1 and 5.1.0. The root cause is a permission issue classified under CWE-275, indicating improper permission management that allows an attacker to trigger a denial of service condition. The vulnerability requires the attacker to have local access to the device and to engage in user interaction, such as convincing a user to perform an action that triggers the flaw. The attack vector is local (AV:L), with low attack complexity (AC:L), no privileges required (PR:N), but user interaction is necessary (UI:R). The scope remains unchanged (S:U), and the impact is limited to availability (A:H), with no impact on confidentiality or integrity. This means the attacker can cause the office service to become unavailable, potentially disrupting productivity or critical business functions relying on HarmonyOS office services. There are no known exploits in the wild, and no patches have been published yet, which suggests the vulnerability was recently disclosed and organizations should prepare for remediation. The vulnerability's medium severity rating (CVSS 5.5) reflects its moderate risk profile, primarily due to the requirement for local access and user interaction, limiting remote exploitation. However, the impact on availability can be significant in environments where HarmonyOS devices are integral to operations.

For European organizations, the primary impact of CVE-2025-58288 is the potential disruption of availability in office services running on Huawei HarmonyOS devices. This can lead to operational downtime, reduced productivity, and potential business continuity challenges, especially in sectors heavily reliant on mobile or embedded HarmonyOS devices for office-related tasks. Although confidentiality and integrity are not affected, the denial of service could impair communication, document processing, and other critical office functions. Organizations in industries such as telecommunications, government, and technology that utilize Huawei devices may experience more pronounced effects. The requirement for local access and user interaction somewhat limits the threat scope but does not eliminate risk in environments where devices are shared or physically accessible. Additionally, the absence of patches increases exposure until a fix is available. The impact is heightened in environments with limited device management or where users may be susceptible to social engineering tactics to trigger the vulnerability.

1. Restrict physical and local access to Huawei HarmonyOS devices, especially in sensitive or high-risk environments, to reduce the likelihood of exploitation. 2. Educate users about the risks of interacting with unexpected prompts or actions on their devices to mitigate user interaction requirements. 3. Implement strict device usage policies and monitor for unusual behavior or service disruptions related to the office service component. 4. Employ endpoint detection and response (EDR) tools capable of identifying anomalous local activities on HarmonyOS devices. 5. Prepare for timely deployment of patches or updates from Huawei once they become available; maintain close communication with Huawei security advisories. 6. Consider network segmentation to isolate critical HarmonyOS devices from less trusted networks or users. 7. Conduct regular audits of device permissions and configurations to ensure no excessive privileges are granted to office service components. 8. Develop incident response plans that include scenarios involving denial of service on critical office services to minimize downtime and impact.