CVE-2018-21052: Google Android

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

An issue was discovered on Samsung mobile devices with N(7.x) and O(8.X) (Exynos chipsets) software. There is incorrect usage of shared memory in the vaultkeeper Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2018-12855 (October 2018).

Affected products

• Google Android: version 7.0 only; version 7.1.0 only; version 7.1.1 only; version 7.1.2 only; version 8.0 only; version 8.1 only

Published 2020-04-08. Last modified 2026-06-17.