CVE-2026-21121

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Improper Permission Handling in CmcCore

Publication date: 2026-10-12

Last updated on: 2026-10-16

Assigner: Samsung Mobile

Description

Improper handling of insufficient permission in CmcCore prior to SMR Oct-2026 Release 1 allows local attackers to use the privileged APIs.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-12

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-12

EPSS Evaluated

2026-10-18

NVD

CVE-2026-21121

EUVD

EUVD-2026-97185

Affected Vendors & Products

Vendor	Product	Version / Range
samsung	cmccore	to 2026-10-01 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-280	The product 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 product in an invalid state.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper handling of insufficient permissions in CmcCore before the SMR Oct-2026 Release 1. Local attackers can exploit this to misuse privileged APIs.

Detection Guidance

This vulnerability involves improper handling of insufficient permissions in CmcCore. Detection requires checking for unauthorized use of privileged APIs. No specific commands are provided in the context to detect this issue.

Impact Analysis

If exploited, attackers with local access could gain unauthorized control over privileged functions, potentially leading to data breaches or system compromise.

Compliance Impact

This vulnerability could violate compliance requirements by enabling unauthorized access to sensitive data, potentially breaching GDPR or HIPAA if exploited.

Mitigation Strategies

Update CmcCore to the SMR Oct-2026 Release 1 or later to address the improper permission handling issue.

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