Improper Input Validation in Samsung Device Routines
CVE-2026-21021

5.1MEDIUM

Key Information:

Vendor

Samsung
Status
Samsung Devices
Vendor
CVE Published:
13 May 2026

What is CVE-2026-21021?

Improper input validation in Samsung devices' Routines, prior to the SMR May-2026 Release 1, allows physical attackers to exploit this flaw to perform unauthorized privileged actions. Users are advised to apply security updates promptly to mitigate this risk.

Affected Version(s)

Samsung Mobile Devices SMR May-2026 Release in Android 16

References

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

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.