TOCTOU Race in Samsung FabricKeymaster Trustlet Enables Local Privileged Code Exec
CVE-2026-21046 Published on July 10, 2026
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.
Products Associated with CVE-2026-21046
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Affected Versions
Samsung Mobile Devices:- Version SMR Jul-2026 Release in Android 14, 15, 16 and below * is unaffected.
Exploit Probability
EPSS
0.10%
Percentile
0.86%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.