CVE-2021-39990: Huawei Harmonyos

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

The screen lock module has a Stack-based Buffer Overflow vulnerability.Successful exploitation of this vulnerability may affect user experience.

Affected products

• Huawei Harmonyos: before 2.0 (fixed in 2.0)

Published 2022-01-03. Last modified 2026-06-17.