CVE-2026-34866: Huawei Harmonyos

Medium severity, CVSS 5.1. EPSS: 0.1% chance of exploitation in the next 30 days.

Out-of-bounds write vulnerability in the WEB module.Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.

Affected products

• Huawei Harmonyos: version 6.0.0 only

Published 2026-04-13. Last modified 2026-06-17.