Samsung Checkout before 5.1.03.1: CVE-2026-21128 Improper Input Validation
CVE-2026-21128 Published on October 12, 2026
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung Checkout privileges.
Vulnerability Analysis
CVE-2026-21128 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Products Associated with CVE-2026-21128
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Affected Versions
Samsung Mobile Samsung Checkout:- Version 5.1.03.1 and below * is unaffected.