Buffer overflow in Samsung Android

CVE-2026-21018

Out-of-bounds write in SveService prior to SMR May-2026 Release 1 allows local privileged attackers to execute arbitrary code.

Vulnerability class: Buffer Overflow

EPSS: 0.000 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Samsung Android — versions 14.0, 15.0, 16.0
Samsung Mobile Devices — versions SMR May-2026 Release in Android 14, 15, 16

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-21018?: CVE-2026-21018 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2026-05-13.
How severe is CVE-2026-21018?: Medium severity. CVSS v3 base score is 6.7 out of 10.