CVE-2016-5821: Huawei Hisuite

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Huawei HiSuite before 4.0.4.204_ove (Out of China) and before 4.0.4.301 (China) use a weak ACL (FILE_WRITE_DATA for BUILTIN\Users) for the HiSuite service directory, which allows local users to gain SYSTEM privileges via a Trojan horse (1) SspiCli.dll or (2) USERENV.dll file or possibly other unspecified DLL files.

Affected products

• Huawei Hisuite: up to and including 4.0.3.301

Published 2016-07-13. Last modified 2026-06-17.