Samsung Devices path traversal

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.48+

Summaryinfo

A vulnerability labeled as problematic has been found in Samsung Devices. This vulnerability affects unknown code. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2026-21103. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Samsung Devices (the affected version unknown) and classified as problematic. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-35. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Path traversal in GalaxyDiagnostics prior to SMR Sep-2026 Release 1 allows physical attackers to access files with system privilege.

The advisory is available at security.samsungmobile.com. This vulnerability is handled as CVE-2026-21103 since 12/11/2025. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Path traversal
CWE: CWE-35 / CWE-23 / CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/11/2025 CVE reserved
09/09/2026 +271 days Advisory disclosed
09/09/2026 +0 days VulDB entry created
09/09/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2026-21103 (🔒)
GCVE (CVE): GCVE-0-2026-21103
GCVE (VulDB): GCVE-100-401558

Entryinfo

Created: 09/09/2026 07:08
Changes: 09/09/2026 07:08 (62)
Complete: 🔍
Cache ID: 216::103

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