CVE-2025-52458: Openatom Openharmony

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

in OpenHarmony v5.1.0 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write. This vulnerability can be exploited only in restricted scenarios.

Affected products

• Openatom Openharmony: version 5.0.3 only; version 5.1.0 only

Published 2026-03-16. Last modified 2026-06-17.