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.

The EPSS score is 0.00096.

Exploitation none

Automatable no

Technical Impact total

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

Sun, 26 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Title FabricKeymaster Trustlet Race Condition Enabling Local Privilege Escalation
Weaknesses CWE-824

Thu, 23 Jul 2026 08:45:00 +0000

Type Values Removed Values Added
Title FabricKeymaster Trustlet Time‑of‑Check Time‑of‑Use Race Enables Local Privilege Escalation on Samsung Mobile Devices
Weaknesses CWE-362

Sat, 18 Jul 2026 04:45:00 +0000

Type Values Removed Values Added
Title FabricKeymaster Trustlet Time‑of‑Check Time‑of‑Use Race Enables Local Privilege Escalation on Samsung Mobile Devices
Weaknesses CWE-362

Thu, 16 Jul 2026 19:00:00 +0000

Type Values Removed Values Added
Title FabricKeymaster Trustlet Local Privilege Escalation via Time‑of‑Check Time‑of‑Use Race Condition
Weaknesses CWE-617
CWE-732

Tue, 14 Jul 2026 15:15:00 +0000

Type Values Removed Values Added
Title FabricKeymaster Trustlet Local Privilege Escalation via Time‑of‑Check Time‑of‑Use Race Condition
Weaknesses CWE-617
CWE-732

Mon, 13 Jul 2026 20:45:00 +0000

Type Values Removed Values Added
Title Local Privilege Escalation via Time-of-Check Time-of-Use Race in FabricKeymaster Trustlet
Weaknesses CWE-250
CWE-409

Mon, 13 Jul 2026 00:30:00 +0000

Type Values Removed Values Added
Title Local Privilege Escalation via Time-of-Check Time-of-Use Race in FabricKeymaster Trustlet
Weaknesses CWE-250
CWE-409

Sun, 12 Jul 2026 05:45:00 +0000

Type Values Removed Values Added
Title Time‑of‑Check Time‑of‑Use Race in Samsung FabricKeymaster Trustlet Enables Code Execution
Weaknesses CWE-250
CWE-409

Fri, 10 Jul 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 10 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Title Time‑of‑Check Time‑of‑Use Race in Samsung FabricKeymaster Trustlet Enables Code Execution
Weaknesses CWE-250
CWE-409

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: 2026-07-11T03:55:19.537Z

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

Link: CVE-2026-21046

cve-icon Vulnrichment

Updated: 2026-07-10T12:22:34.481Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-26T14:15:18Z

Weaknesses