CVE-2021-39998: Huawei Emui

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

There is Vulnerability of APIs being concurrently called for multiple times in HwConnectivityExService a in smartphones. Successful exploitation of this vulnerability may cause the system to crash and restart.

Affected products

• Huawei Emui: version 11.0.0 only; version 11.0.1 only
• Huawei Harmonyos: before 2.0 (fixed in 2.0)
• Huawei Magic UI: version 4.0.0 only

Published 2022-01-10. Last modified 2026-06-17.