---
id: CVE-2026-21139
title: >-
  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.
summary: >-
  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.
severity: none
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T05:17:02.750'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21139'
references:
  - url: 'https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=10'
    label: mobile.security@samsung.com
tags:
  - nvd
ingestedAt: '2026-10-12T14:50:34.089Z'
---

## Overview

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

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.