---
id: CVE-2025-21047
title: >-
  Improper access control in KnoxGuard prior to SMR Oct-2025 Release 1 allows
  physical attackers to use the privileged APIs.
summary: >-
  Improper access control in KnoxGuard prior to SMR Oct-2025 Release 1 allows
  physical attackers to use the privileged APIs.
severity: medium
cvss: 5.2
cvssVector: 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L'
vendor: samsung
product: android
affected:
  - android = 14.0
  - android = 15.0
  - android = 16.0
published: '2025-10-10'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T13:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-21047'
references:
  - url: 'https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=10'
    label: mobile.security@samsung.com
tags:
  - nvd
epss: 0.00188
epssPercentile: 0.07727
ingestedAt: '2026-10-08T13:42:55.069Z'
---

## Overview

Improper access control in KnoxGuard prior to SMR Oct-2025 Release 1 allows physical attackers to use the privileged APIs.

## Affected

- `android = 14.0`
- `android = 15.0`
- `android = 16.0`

## Remediation

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