CVE-2026-21024

Vulnerability

Analysis

CVE-2026-21024 is an improper privilege management flaw in Samsung System Support Service prior to version 8.0.8.0. The root cause is inadequate enforcement of permission checks, allowing a local application to invoke privileged functions without proper authorization [1].

Exploitation

Exploitation requires local access to the device; no additional authentication is needed beyond standard app installation. An attacker with a malicious or compromised app can call system-level functions that the Service exposes, bypassing intended privilege restrictions [1].

Impact

Successful exploitation enables the local attacker to execute privileged operations, potentially leading to elevation of privilege. The exact functions accessible depend on the service's exposed API, but the impact is confined to the scope of the System Support Service's privileges [1].

Mitigation

Samsung has addressed this issue by releasing version 8.0.8.0 of the System Support Service. Users should update to this or a later version through the Galaxy Store or system updates [1].