This vulnerability (CVE-2026-21075) is classified as CWE-939 (Improper Authorization) and affects the My Galaxy app by Samsung Mobile. The flaw resides in the handler for a custom URL scheme, allowing remote attackers to bypass authorization controls and access sensitive information. The CVSS 4.0 base score is 5.3 (medium), with network attack vector, low complexity, no privileges required, and user interaction required. There is no known exploit in the wild, and no official remediation or patch has been documented as of the published date.

Remote attackers can exploit improper authorization in the custom URL scheme handler to access sensitive information within the My Galaxy app. The impact is limited to confidentiality with low severity, and there is no impact on integrity or availability. No privilege or user interaction is required for the attack, but user interaction is noted in the CVSS vector, indicating some involvement is needed.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users and administrators should monitor Samsung Mobile's advisories for updates. No specific mitigations are documented at this time.