CVE-2021-39993: Huawei Emui

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

There is an Integer overflow vulnerability with ACPU in smartphones. Successful exploitation of this vulnerability may cause out-of-bounds access.

Affected products

• Huawei Emui: version 11.0.0 only
• Huawei Magic UI: version 4.0.0 only

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