CVE-2026-21003 PUBLISHED

Assigner: SamsungMobile
Reserved: 11.12.2025 Published: 13.04.2026 Updated: 13.04.2026

Improper input validation in data related to network restrictions prior to SMR Apr-2026 Release 1 allows physical attackers to bypass the restrictions.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 5.2

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

CVSS 4.0

Product Status

Vendor	Samsung Mobile
Product	Samsung Mobile Devices
Versions	Default: affected unaffected from SMR Apr-2026 Release in Selected Android 14, 15, 16 devices to * (excl.)

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=04

Problem Types

CWE-20: Improper Input Validation