---
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: high
cvss: 7.3
cvssVector: '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'
cwe:
  - CWE-284
vendor: Samsung Mobile
product: Samsung Continuity Service for windows
affected:
  - samsung_continuity_service_for_windows (all versions)
published: '2026-10-12'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:38.153'
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
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T17:51:30.554906Z'
cvssSource: cna
epss: 0.0012
epssPercentile: 0.01849
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.