Samsung Devices Fingerprint Trustlet hmac_key information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Samsung Devices. This vulnerability affects unknown code of the component Fingerprint Trustlet. Performing a manipulation of the argument hmac_key results in information disclosure. This vulnerability is identified as CVE-2025-20989. The attack is only possible with local access. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Samsung Devices (affected version not known). This affects some unknown functionality of the component Fingerprint Trustlet. The manipulation of the argument hmac_key with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Improper logging in fingerprint trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to get a hmac_key.

The advisory is shared at security.samsungmobile.com. This vulnerability is uniquely identified as CVE-2025-20989 since 11/06/2024. The exploitability is told to be difficult. An attack has to be approached locally. The exploitation needs additional levels of successful authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-16831). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 1.9
VulDB Temp Score: 1.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Information disclosure
CWE: CWE-200 / CWE-284 / 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 🔍
06/04/2025 +209 days 🔍
06/04/2025 +0 days 🔍
02/11/2026 +252 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2025-20989 (🔍)
GCVE (CVE): GCVE-0-2025-20989
GCVE (VulDB): GCVE-100-311061
EUVD: 🔍

Entryinfo

Created: 06/04/2025 07:54
Updated: 02/11/2026 01:45
Changes: 06/04/2025 07:54 (63), 06/04/2025 09:04 (1), 02/11/2026 01:45 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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