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.

Attack Vector Local

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Samsung Mobile Samsung Mobile Devices affected
Version Status Constraints
SMR Jul-2026 Release in Android 14, 15, 16 unaffected < *

No data.

No data.

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Vendors Products
Samsung Mobile Subscribe
Samsung Mobile Devices Subscribe

Project Subscriptions

Vendors Products
Samsung Mobile Subscribe
Samsung Mobile Devices Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=07 cve-icon
History

Fri, 10 Jul 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Samsung Mobile
Samsung Mobile samsung Mobile Devices
Vendors & Products Samsung Mobile
Samsung Mobile samsung Mobile Devices

Fri, 10 Jul 2026 05:15:00 +0000

Type Values Removed Values Added
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.
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: SamsungMobile

Published:

Updated: 2026-07-10T04:58:09.129Z

Reserved: 2025-12-11T01:33:35.816Z

Link: CVE-2026-21046

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-10T07:45:07Z

Weaknesses

No weakness.