CVE-2025-58299 is a Use After Free (CWE-416) vulnerability identified in the storage management module of Huawei's HarmonyOS, specifically affecting versions 5.0.1 and 5.1.0. Use After Free vulnerabilities occur when a program continues to use memory after it has been freed, leading to undefined behavior such as crashes, data corruption, or arbitrary code execution. This vulnerability can be exploited locally without requiring any privileges or user interaction, making it particularly dangerous in environments where an attacker can gain local access. The CVSS v3.1 score of 8.4 reflects its high impact on confidentiality, integrity, and availability, indicating that exploitation could lead to complete system compromise. The vulnerability resides in a critical system component responsible for managing storage, which is fundamental to the operating system's stability and security. While no public exploits have been reported yet, the potential for attackers to leverage this flaw to disrupt services or escalate privileges is significant. The lack of available patches at the time of publication increases the urgency for organizations to implement interim mitigations and monitor affected systems closely. Given Huawei's market presence in mobile and IoT devices, this vulnerability could affect a broad range of devices running HarmonyOS, especially in enterprise and industrial contexts.

For European organizations, the impact of CVE-2025-58299 could be substantial, particularly for those relying on Huawei HarmonyOS devices in operational technology, mobile communications, or IoT deployments. Exploitation could lead to denial of service conditions, causing critical systems to become unavailable, which is especially concerning for sectors like telecommunications, manufacturing, and public services. The potential for confidentiality and integrity breaches also raises risks of data leakage or manipulation, undermining trust and compliance with regulations such as GDPR. The vulnerability's local attack vector means that insider threats or attackers who gain physical or network access to devices could exploit it. Disruptions could cascade in interconnected environments, amplifying operational risks. The absence of known exploits currently provides a window for proactive defense, but the high severity score indicates that once exploited, the consequences could be severe. Organizations with Huawei device deployments must prioritize risk assessments and incident response planning to mitigate potential impacts.

1. Monitor Huawei's official channels for security patches addressing CVE-2025-58299 and apply them immediately upon release. 2. Restrict local access to HarmonyOS devices by enforcing strict physical security controls and limiting administrative privileges. 3. Implement network segmentation to isolate vulnerable devices from critical infrastructure and sensitive data environments. 4. Deploy endpoint detection and response (EDR) solutions capable of identifying anomalous behaviors indicative of exploitation attempts, such as unexpected crashes or memory corruption events. 5. Conduct regular security audits and vulnerability assessments focusing on HarmonyOS devices within the organization. 6. Educate staff on the risks of local device access and enforce policies to prevent unauthorized use. 7. Where possible, disable or limit storage management functionalities that are not essential to reduce the attack surface. 8. Maintain comprehensive logging and monitoring to detect early signs of exploitation or system instability related to this vulnerability.