Samsung Devices DiagMonAgent default permission

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Samsung Devices. This affects an unknown function of the component DiagMonAgent. The manipulation leads to default permission. This vulnerability is uniquely identified as CVE-2025-20912. Local access is required to approach this attack. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Samsung Devices (the affected version is unknown). This issue affects an unknown code of the component DiagMonAgent. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality. The summary by CVE is:

Incorrect default permission in DiagMonAgent prior to SMR Mar-2025 Release 1 allows local attackers to access data within Galaxy Watch.

The advisory is shared at security.samsungmobile.com. The identification of this vulnerability is CVE-2025-20912 since 11/06/2024. The exploitation is known to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector (SamsungMobile): 🔍

CVSSv2info

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

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
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 🔍
03/06/2025 +120 days 🔍
03/06/2025 +0 days 🔍
02/02/2026 +333 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2025-20912 (🔍)
GCVE (CVE): GCVE-0-2025-20912
GCVE (VulDB): GCVE-100-298757

Entryinfo

Created: 03/06/2025 07:47
Updated: 02/02/2026 19:28
Changes: 03/06/2025 07:47 (62), 02/02/2026 19:28 (1)
Complete: 🔍
Cache ID: 216::103

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