Samsung KnoxGuard Privileged API access control

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Samsung KnoxGuard. This issue affects some unknown processing of the component Privileged API. Such manipulation leads to access control. This vulnerability is listed as CVE-2025-21047. The attack can be executed directly on the physical device. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Samsung KnoxGuard (the affected version unknown) and classified as critical. Affected by this issue is an unknown part of the component Privileged API. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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

The advisory is shared for download at security.samsungmobile.com. This vulnerability is handled as CVE-2025-21047 since 11/06/2024. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202510-1501) and CERT Bund (WID-SEC-2025-2219). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Samsung Android

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔒

CNA Base Score: 5.2
CNA Vector (SamsungMobile): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/06/2024 CVE reserved
10/10/2025 +337 days Advisory disclosed
10/10/2025 +0 days VulDB entry created
10/24/2025 +13 days VulDB entry last update

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2025-21047 (🔒)
GCVE (CVE): GCVE-0-2025-21047
GCVE (VulDB): GCVE-100-327848
CERT Bund: WID-SEC-2025-2219 - Samsung Android: Mehrere Schwachstellen
CNNVD: CNNVD-202510-1501 - SAMSUNG Mobile devices 安全漏洞

Entryinfo

Created: 10/10/2025 08:48
Updated: 10/24/2025 01:14
Changes: 10/10/2025 08:48 (62), 10/10/2025 12:48 (7), 10/11/2025 17:47 (6), 10/12/2025 19:13 (1), 10/24/2025 01:14 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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