Samsung Smart Phone NFC hard-coded credentials

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Samsung Smart Phone. The affected element is an unknown function of the component NFC. The manipulation results in hard-coded credentials. This vulnerability is reported as CVE-2023-21426. The attack requires a local approach. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Samsung Smart Phone (Smartphone Operating System) (unknown version). Affected is an unknown code block of the component NFC. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. This is going to have an impact on confidentiality. CVE summarizes:

Hardcoded AES key to encrypt cardemulation PINs in NFC prior to SMR Jan-2023 Release 1 allows attackers to access cardemulation PIN.

The weakness was disclosed 02/09/2023. The advisory is shared for download at security.samsungmobile.com. This vulnerability is traded as CVE-2023-21426 since 11/14/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1110.001.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-25594). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector (Samsung Mobile): 🔍

CVSSv2info

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

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
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

11/14/2022 🔍
02/09/2023 +87 days 🔍
02/09/2023 +0 days 🔍
09/15/2025 +949 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2023-21426 (🔍)
GCVE (CVE): GCVE-0-2023-21426
GCVE (VulDB): GCVE-100-220512
EUVD: 🔍

Entryinfo

Created: 02/09/2023 21:59
Updated: 09/15/2025 12:53
Changes: 02/09/2023 21:59 (49), 03/09/2023 10:46 (11), 09/15/2025 12:53 (16)
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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