CVE-2025-58315 is a permission control vulnerability classified under CWE-264 affecting the Wi-Fi module of Huawei's HarmonyOS operating system, specifically versions 5.0.1, 5.1.0, and 6.0.0. The vulnerability arises from improper enforcement of permissions within the Wi-Fi module, which could allow an unprivileged local attacker to cause a denial of service condition. According to the CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H), the attack requires local access and user interaction but no privileges, and it impacts availability without compromising confidentiality or integrity. The vulnerability does not currently have known exploits in the wild, indicating it may be difficult to exploit or not yet weaponized. The Wi-Fi module is critical for network connectivity, so disruption can affect service availability, potentially impacting business operations relying on network access. The vulnerability was reserved in August 2025 and published in November 2025, with no patches currently linked, suggesting that remediation is pending. The nature of the vulnerability suggests that an attacker could exploit it by tricking a user into performing an action that triggers the flaw, leading to service interruption. This vulnerability highlights the importance of strict permission enforcement in system modules that manage critical services such as Wi-Fi connectivity.

For European organizations, the primary impact of CVE-2025-58315 is on service availability due to potential denial of service in the Wi-Fi module. This could disrupt network connectivity for devices running affected versions of HarmonyOS, leading to operational downtime, reduced productivity, and potential loss of business continuity. Confidentiality and integrity are not directly impacted, reducing the risk of data breaches or unauthorized data modification. However, availability disruptions in critical environments such as manufacturing, logistics, or public services could have cascading effects. Organizations relying on Huawei HarmonyOS devices for wireless connectivity may face challenges maintaining stable network access. The lack of known exploits reduces immediate risk, but the requirement for local access and user interaction means insider threats or social engineering could facilitate exploitation. The absence of patches necessitates proactive risk management to mitigate potential exploitation before fixes are available.

1. Restrict physical and local access to devices running affected HarmonyOS versions to trusted personnel only, minimizing the risk of local exploitation. 2. Educate users about the risks of interacting with untrusted prompts or actions that could trigger the vulnerability, reducing the likelihood of successful user interaction exploitation. 3. Monitor Wi-Fi module behavior and system logs for unusual activity or service interruptions that could indicate exploitation attempts. 4. Implement network segmentation to isolate critical systems from devices running vulnerable HarmonyOS versions, limiting the impact of potential denial of service. 5. Maintain an inventory of Huawei devices and their OS versions to identify and prioritize vulnerable assets. 6. Stay informed on Huawei’s security advisories and apply patches or updates promptly once they become available. 7. Consider deploying endpoint detection and response (EDR) solutions capable of detecting anomalous local activities related to Wi-Fi services. 8. Develop and test incident response plans specifically addressing denial of service scenarios affecting network connectivity.