Improper input validation in FacAtFunction in Galaxy Watch prior to SMR May-2026 Release 1 allows local attacker to execute arbitrary code with system privilege.

Attack Vector Local

Attack Complexity Low

Privileges Required None

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 May-2026 Release in Android Watch 14, 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=05 cve-icon
History

Wed, 13 May 2026 07:30:00 +0000

Type Values Removed Values Added
Title Local Arbitrary Code Execution via Improper Input Validation in Galaxy Watch FacAtFunction
First Time appeared Samsung Mobile
Samsung Mobile samsung Mobile Devices
Weaknesses CWE-20
Vendors & Products Samsung Mobile
Samsung Mobile samsung Mobile Devices

Wed, 13 May 2026 06:00:00 +0000

Type Values Removed Values Added
Description Improper input validation in FacAtFunction in Galaxy Watch prior to SMR May-2026 Release 1 allows local attacker to execute arbitrary code with system privilege.
References
Metrics cvssV4_0

{'score': 8.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/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: 2026-05-13T04:56:22.067Z

Reserved: 2025-12-11T01:33:35.804Z

Link: CVE-2026-21019

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T07:30:25Z

Weaknesses