CVE-2018-21052

9.8 criticalEPSS 0.8%

Critical (9.8) in google android. 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).

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2020-04-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

google:android

References

https://security.samsungmobile.com/securityUpdate.smsb
https://security.samsungmobile.com/securityUpdate.smsb

Check your stack JSON