CVE-2026-21139

Access Control Bypass Enables Remote Manipulation of Mobile Device via Samsung Continuity Service

Published Oct 12, 2026 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
Description
Improper access control in Samsung Continuity Service for windows prior to version 4.6.1217.0 allows adjacent attackers to manipulate the connected mobile device.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Samsung Mobile
Samsung Mobile samsung Continuity Service For Windows
Vendors & Products Samsung Mobile
Samsung Mobile samsung Continuity Service For Windows
Type Values Removed Values Added
Title Access Control Bypass Enables Remote Manipulation of Mobile Device via Samsung Continuity Service
Weaknesses CWE-284
Type Values Removed Values Added
Description Improper access control in Samsung Continuity Service for windows prior to version 4.6.1217.0 allows adjacent attackers to manipulate the connected mobile device.
References
Metrics cvssV4_0

{'score': 7.3, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
SamsungMobile
Published
Updated
Oct 15, 2026, 6:08 PM
Reserved
Dec 11, 2025, 1:33 AM
Status
Awaiting Analysis
Published
Oct 12, 2026, 5:17 AM
Modified
Oct 15, 2026, 7:17 PM