CmcCore Improper Permission Handling Enables Local Privilege Escalation
CVE-2026-21121 Published on October 12, 2026
Improper handling of insufficient permission in CmcCore prior to SMR Oct-2026 Release 1 allows local attackers to use the privileged APIs.
Vulnerability Analysis
CVE-2026-21121 can be exploited 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.
Weakness Type
Improper Handling of Insufficient Permissions or Privileges
The application does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the application in an invalid state.
Products Associated with CVE-2026-21121
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Affected Versions
Samsung Mobile Devices:- Version SMR Oct-2026 Release in Android XR 14 and below * is unaffected.