CVE-2025-58298 is a stack-based buffer overflow vulnerability classified under CWE-121, located in the package management module of Huawei's HarmonyOS versions 5.0.1 and 5.1.0. The vulnerability stems from improper handling of data within the package management process, which can lead to memory corruption. Specifically, a buffer overflow occurs when the system processes certain package data, allowing an attacker to overwrite the stack memory. This can result in unpredictable behavior, including crashes or denial of service, thereby impacting system availability. The vulnerability requires local access (AV:L) but does not require privileges (PR:N) or user interaction (UI:N), making it easier to exploit for an attacker with local access. The CVSS v3.1 score of 7.3 reflects a high severity level, with partial impacts on confidentiality and integrity, but a significant impact on availability. No public exploits have been reported yet, and no patches are currently linked, indicating that mitigation may rely on vendor updates in the near future. The flaw could be leveraged by attackers to disrupt services on devices running the affected HarmonyOS versions, particularly in environments where these devices are used for critical operations or infrastructure management.

For European organizations, the primary impact of CVE-2025-58298 is on system availability, potentially causing denial of service conditions on devices running affected HarmonyOS versions. This can disrupt business operations, especially in sectors relying on Huawei devices for communication, IoT, or industrial control systems. The partial impact on confidentiality and integrity, while lower, still poses risks if combined with other vulnerabilities or attack vectors. Organizations using Huawei smartphones, tablets, or embedded systems with HarmonyOS 5.0.1 or 5.1.0 may experience service interruptions or device instability. Given Huawei's market presence in Europe, particularly in telecommunications and consumer electronics, the vulnerability could affect network operators, enterprises, and end-users. The lack of required privileges or user interaction increases the risk of exploitation by insiders or malware with local access. The absence of known exploits in the wild currently limits immediate risk but does not preclude future attacks. Overall, the vulnerability could undermine operational continuity and trust in Huawei-based infrastructure within Europe.

1. Monitor Huawei's official security advisories and promptly apply patches or updates once they become available for HarmonyOS versions 5.0.1 and 5.1.0. 2. Restrict local access to devices running affected HarmonyOS versions by enforcing strict physical security controls and limiting administrative access to trusted personnel only. 3. Implement endpoint detection and response (EDR) solutions capable of identifying abnormal behavior indicative of buffer overflow exploitation attempts. 4. Conduct regular security audits and vulnerability assessments on Huawei devices to detect signs of exploitation or misconfiguration. 5. Employ network segmentation to isolate critical Huawei devices from less secure network zones, reducing the attack surface. 6. Educate staff about the risks of local exploitation and enforce policies to prevent unauthorized device access. 7. Where feasible, consider upgrading to newer, unaffected HarmonyOS versions or alternative platforms until patches are released. 8. Maintain comprehensive backups and incident response plans to quickly recover from potential denial of service incidents caused by exploitation.