CVE-2025-46593 is a vulnerability classified under CWE-400, which pertains to uncontrolled resource consumption, specifically within the print module of Huawei's HarmonyOS version 5.0.0. The vulnerability arises from a process residence issue under abnormal scenarios, likely meaning that certain print-related processes remain active or consume resources excessively when they should not. This can lead to resource exhaustion, impacting system availability. The CVSS 3.1 base score is 5.1, indicating a medium severity level. The vector string (AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L) shows that the attack requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N). The scope is unchanged (S:U), with no confidentiality impact (C:N), low integrity impact (I:L), and low availability impact (A:L). No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability could be exploited by an attacker with local access to cause denial of service or degrade system performance by exhausting resources through the print module, potentially affecting the availability of devices running HarmonyOS 5.0.0.

For European organizations using Huawei devices running HarmonyOS 5.0.0, this vulnerability could lead to denial of service conditions on affected devices, particularly those relying on printing services or where print module processes are critical. The impact is primarily on availability, which could disrupt business operations, especially in environments where printing is integral to workflows or where devices are part of larger IoT or industrial systems. While the vulnerability requires local access, insider threats or compromised devices could exploit this to degrade system performance or cause outages. Given Huawei's market presence in Europe, especially in telecommunications and consumer devices, organizations could face operational disruptions, increased maintenance costs, and potential reputational damage if availability issues arise from exploitation.

Organizations should monitor for unusual resource consumption related to printing processes on HarmonyOS devices and restrict local access to trusted users only. Implement strict access controls and device usage policies to minimize the risk of local exploitation. Since no patches are currently available, consider disabling or limiting the use of the print module where feasible, especially on critical systems. Employ system resource monitoring tools to detect abnormal process behavior early. Additionally, segment networks to isolate vulnerable devices and reduce the attack surface. Engage with Huawei support channels for updates on patches or mitigations and plan for timely deployment once available. Finally, conduct regular security audits and user training to reduce the risk of insider exploitation.