Improper Input Validation in Samsung Checkout Affects Local Users
CVE-2026-21128

5.1MEDIUM

Key Information:

Vendor

Samsung
Status
Samsung Checkout
Vendor
CVE Published:
12 October 2026

What is CVE-2026-21128?

An input validation flaw in Samsung Checkout's CreditCardRegisterActivity allows local attackers to exploit the application, potentially leading to the execution of arbitrary activities with elevated permissions. This vulnerability is particularly concerning as it can be exploited by unauthenticated users who have local access to the device, raising the risk of unauthorized actions within the application.

Affected Version(s)

Samsung Checkout 5.1.03.1

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2...

CVSS V4

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.