EUVD-2026-44660
GHSA-fr78-wfr2-4mhm
Severity by source
AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:H
Local-only access with mandatory high privileges and user interaction; availability impact is high but no confidentiality impact is substantiated by available technical evidence.
Primary rating from Vendor (huawei).
CVSS VectorVendor: huawei
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:H
Lifecycle Timeline
1DescriptionCVE.org
Design defect vulnerability in Expedition mode. Impact: Successful exploitation of this vulnerability may affect availability.
AnalysisAI
Design defect in HarmonyOS's 'Expedition mode' allows a high-privileged local attacker, with user interaction, to cause significant availability disruption and minor integrity impact. Reported by Huawei in its July 2026 security bulletin, the vulnerability carries a CVSS 3.1 base score of 4.8, reflecting constrained exploitability due to local access, high privilege, and required user interaction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) local access to the HarmonyOS device - no remote or network-based exploitation path exists per AV:L; (2) high privilege level on the device, meaning the attacker must already operate as an administrator or equivalent high-privileged account (PR:H); (3) some form of user interaction (UI:R), such as triggering a mode switch or user-initiated action in Expedition mode. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The overall real-world risk is low to moderate. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A high-privileged local user on a HarmonyOS device (e.g., an admin or device owner with elevated access) triggers Expedition mode through a device interaction, causing the underlying design defect to corrupt availability of the affected component or the device state. Because user interaction is required (UI:R), a purely automated local exploit is unlikely without some form of social engineering or physical device access to prompt the interaction. … |
| Remediation | The primary remediation is to apply the patch or update referenced in Huawei's July 2026 security bulletin at https://consumer.huawei.com/en/support/bulletin/2026/7/. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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