---
id: CVE-2025-21064
title: >-
  Improper authentication in Smart Switch prior to version 3.7.66.6 allows
  adjacent attackers to access transferring data.
summary: >-
  Improper authentication in Smart Switch prior to version 3.7.66.6 allows
  adjacent attackers to access transferring data.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: samsung
product: smart_switch
affected:
  - smart_switch < 3.7.67.2
patched:
  - smart_switch 3.7.67.2
published: '2025-10-10'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-21064'
references:
  - url: 'https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=10'
    label: mobile.security@samsung.com
tags:
  - nvd
epss: 0.00265
epssPercentile: 0.16659
ingestedAt: '2026-09-30T23:29:32.423Z'
---

## Overview

Improper authentication in Smart Switch prior to version 3.7.66.6 allows adjacent attackers to access transferring data.

## Affected

- `smart_switch < 3.7.67.2`

## Remediation

Upgrade past the affected range:

- `smart_switch 3.7.67.2`