The vulnerability is a design defect in Huawei HarmonyOS’s Expedition mode, classified as CWE‑701. When exploited it can cause a degradation of service availability, potentially leading to intermittent or sustained interruptions of functions that rely on Expedition mode. The design flaw impacts the handling of data during operation, but no further details about the exact mechanics are disclosed in the advisory.

Huawei HarmonyOS devices that run with Expedition mode enabled are affected. The advisory does not list specific version numbers, so all HarmonyOS builds that include Expedition mode may be at risk unless the vendor issues a patch.

The CVSS base score of 4.8 indicates a low‑to‑moderate impact. The EPSS score of less than 1% shows that the likelihood of exploitation in the wild is very low. The vulnerability is not included in the CISA KEV catalog. No explicit attack vector is disclosed; it is inferred that exploitation requires the device to be running Expedition mode, making widespread remote exploitation unlikely.