Samsung Blockchain Keystore 1.3.12.1/1.3.13.5/1.3.16/1.3.16.5 Crypto Box out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Samsung Blockchain Keystore. Affected is an unknown function of the component Crypto Box. Performing a manipulation results in out-of-bounds write. This vulnerability was named CVE-2025-21017. The attack needs to be approached locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Samsung Blockchain Keystore. This affects some unknown processing of the component Crypto Box. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Out-of-bounds write in detaching crypto box in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory.

The advisory is shared at security.samsungmobile.com. This vulnerability is uniquely identified as CVE-2025-21017 since 11/06/2024. The exploitability is told to be easy. An attack has to be approached locally. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.3.17.2 eliminates this vulnerability.

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

Productinfo

Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔒

CNA Base Score: 6.3
CNA Vector (SamsungMobile): 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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: 🔒

Upgrade: Blockchain Keystore 1.3.17.2

Timelineinfo

11/06/2024 CVE reserved
08/06/2025 +272 days Advisory disclosed
08/06/2025 +0 days VulDB entry created
08/15/2025 +9 days VulDB entry last update

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2025-21017 (🔒)
GCVE (CVE): GCVE-0-2025-21017
GCVE (VulDB): GCVE-100-318933

Entryinfo

Created: 08/06/2025 08:12
Updated: 08/15/2025 18:59
Changes: 08/06/2025 08:12 (64), 08/15/2025 18:59 (12)
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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