CVE-2025-68956 is a concurrency-related vulnerability classified under CWE-362, identified in Huawei's HarmonyOS version 6.0.0, specifically within the card framework module. The flaw stems from a race condition caused by improper synchronization when multiple threads access shared resources concurrently. This can lead to inconsistent states, data corruption, or denial of service conditions affecting system availability. The vulnerability's CVSS 3.1 score is 8.0, reflecting high severity due to its impact on confidentiality, integrity, and availability (C:L/I:H/A:H). The attack vector is local (AV:L), requiring no privileges (PR:N) or user interaction (UI:N), making it easier for an attacker with local access to exploit. Although no exploits are currently known in the wild, the vulnerability could be leveraged to disrupt services or corrupt data on devices running the affected HarmonyOS version. The absence of a patch at the time of reporting necessitates proactive mitigation. The technical root cause lies in the card framework's failure to properly synchronize concurrent threads, leading to race conditions that can be triggered by crafted local operations or applications. This vulnerability highlights the critical need for robust concurrency controls in multi-threaded OS components.

For European organizations, the primary impact is on the availability and integrity of systems running Huawei HarmonyOS 6.0.0, particularly those utilizing the card framework module. Disruptions could affect mobile devices, IoT endpoints, or embedded systems relying on HarmonyOS, potentially leading to service outages or data inconsistencies. Confidentiality impact is lower but present, as indicated by the CVSS vector. Sectors with critical infrastructure, telecommunications, or government use of Huawei devices may experience operational risks. The local attack vector limits remote exploitation but insider threats or compromised local devices could trigger attacks. The lack of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits over time. European organizations dependent on Huawei technology should assess their exposure and prepare for incident response related to availability degradation or data integrity issues.

1. Monitor Huawei's official channels for patches addressing CVE-2025-68956 and apply them promptly once released. 2. Until patches are available, restrict local access to devices running HarmonyOS 6.0.0, enforcing strict user authentication and access controls to minimize risk of local exploitation. 3. Conduct thorough concurrency and race condition testing on in-house applications interacting with the card framework to detect potential triggers. 4. Implement runtime monitoring and anomaly detection on HarmonyOS devices to identify unusual behavior indicative of race condition exploitation attempts. 5. Educate IT and security teams about the vulnerability specifics to enhance detection and response capabilities. 6. For critical environments, consider network segmentation and limiting the use of affected devices until remediation is complete. 7. Engage with Huawei support for guidance and potential workarounds to mitigate impact in the interim.