CVE-2025-66322 is a concurrency-related vulnerability classified under CWE-362, identified in the camera framework module of Huawei's HarmonyOS versions 5.0.1 and 6.0.0. The flaw stems from improper synchronization when multiple threads access shared resources concurrently, leading to a race condition. This race condition can cause inconsistent states or resource conflicts within the camera framework, potentially resulting in system instability or crashes that affect device availability. The vulnerability requires local access with high privileges (PR:H) and does not require user interaction (UI:N), which limits remote exploitation possibilities. The CVSS 3.1 base score is 5.1 (medium), reflecting the vulnerability’s moderate impact on availability (A:H) and limited impact on integrity (I:L), with no confidentiality impact (C:N). The attack vector is local (AV:L), and the attack complexity is low (AC:L), indicating that an attacker with sufficient privileges could reliably exploit the flaw. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and should be addressed promptly. The camera framework is a critical component for device functionality, and disruption could degrade user experience or cause denial of service conditions. The vulnerability’s presence in widely deployed Huawei HarmonyOS versions raises concerns for devices in consumer and enterprise environments, particularly where Huawei hardware is prevalent.

For European organizations, the primary impact of CVE-2025-66322 is on the availability and stability of devices running affected HarmonyOS versions, particularly those relying on camera functionalities. This could disrupt business operations that depend on Huawei devices, including smartphones, IoT devices, and embedded systems in telecommunications infrastructure. Although the vulnerability does not compromise confidentiality, the potential for denial of service or system crashes could lead to operational downtime, affecting productivity and service delivery. Organizations in sectors such as telecommunications, public safety, and consumer electronics may face increased risk if devices are used in critical roles. The requirement for high privilege local access reduces the likelihood of widespread exploitation but elevates the risk from insider threats or compromised administrative accounts. Additionally, the lack of current patches means organizations must implement interim controls to mitigate risk. The impact is more pronounced in environments with heavy Huawei device integration, where availability disruptions could cascade into broader service interruptions.

To mitigate CVE-2025-66322, organizations should: 1) Monitor Huawei’s official channels for patches and apply updates promptly once available to address the race condition. 2) Restrict local administrative access to trusted personnel only, minimizing the risk of privilege abuse. 3) Implement strict access controls and endpoint protection to detect and prevent unauthorized local privilege escalation attempts. 4) Conduct regular audits of device usage and camera framework logs to identify abnormal behavior indicative of exploitation attempts. 5) Employ application whitelisting and runtime protection mechanisms on HarmonyOS devices to limit execution of unauthorized code. 6) For critical deployments, consider network segmentation to isolate vulnerable devices and reduce attack surface. 7) Educate users and administrators on the risks of privilege misuse and enforce strong authentication policies. 8) Collaborate with Huawei support for guidance and early access to security updates. These steps go beyond generic advice by focusing on controlling local access, monitoring specific subsystem behavior, and preparing for patch deployment.