CVE-2026-21021 PUBLISHED

Assigner: SamsungMobile
Reserved: 11.12.2025 Published: 13.05.2026 Updated: 13.05.2026

Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

CVSS Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Physical	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Vendor	Samsung Mobile
Product	Samsung Mobile Devices
Versions	Default: affected unaffected from SMR May-2026 Release in Android 16 to * (excl.)