CVE-2026-21046
Received Received - Intake

Time-of-check Time-of-use Race Condition in fabricKeymaster Trustlet

Publication date: 2026-07-10

Last updated on: 2026-07-10

Assigner: Samsung Mobile

Description
Time-of-check time-of-use race condition in fabricKeymaster trustlet prior to SMR Jul-2026 Release 1 allows local privileged attackers to execute arbitrary code.

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Meta Information

Published
2026-07-10
Last Modified
2026-07-10
Generated
2026-07-10
AI Q&A
2026-07-10
EPSS Evaluated
N/A
NVD
CVE-2026-21046
EUVD
EUVD-2026-42817

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
samsung fabrickeymaster *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a time-of-check time-of-use (TOCTOU) race condition in the fabricKeymaster trustlet component prior to the SMR Jul-2026 Release 1. It allows local privileged attackers to execute arbitrary code by exploiting the timing gap between checking a condition and using the result of that check.

Impact Analysis

The vulnerability can allow local privileged attackers to execute arbitrary code on the affected system. This could lead to unauthorized actions, potential system compromise, and loss of control over the device.

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