Samsung My Galaxy up to 6.2 improper authorization in handler for custom url scheme

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.57+

Summaryinfo

A vulnerability classified as problematic was found in Samsung My Galaxy up to 6.2. This impacts an unknown function. Executing a manipulation can lead to improper authorization in handler for custom url scheme. This vulnerability is tracked as CVE-2026-21075. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in Samsung My Galaxy up to 6.2. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a improper authorization in handler for custom url scheme vulnerability. The CWE definition for the vulnerability is CWE-939. The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme. As an impact it is known to affect confidentiality. CVE summarizes:

Improper authorization in handler for custom URL scheme in My Galaxy prior to version 6.3 allows remote attackers to access sensitive information.

The advisory is shared for download at security.samsungmobile.com. This vulnerability was named CVE-2026-21075 since 12/11/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 6.3 eliminates this vulnerability.

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

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Improper authorization in handler for custom url scheme
CWE: CWE-939 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: My Galaxy 6.3

Timelineinfo

12/11/2025 CVE reserved
08/10/2026 +241 days Advisory disclosed
08/10/2026 +0 days VulDB entry created
08/10/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2026-21075 (🔒)
GCVE (CVE): GCVE-0-2026-21075
GCVE (VulDB): GCVE-100-387352

Entryinfo

Created: 08/10/2026 10:34
Changes: 08/10/2026 10:34 (53)
Complete: 🔍
Cache ID: 216::103

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