What is the CVSS score of CVE-2025-20900?

CVE-2025-20900 has a CVSS 3.1 base score of 6.3 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L. EPSS exploitation probability: 0.1%.

Which versions of Blockchain Keystore are affected by CVE-2025-20900?

Organizations using Blockchain Keystore should be aware of moderate risk from CVE-2025-20900, a out-of-bounds write vulnerability rated CVSS 6.3.

How to fix or mitigate CVE-2025-20900?

Within 30 days: Identify affected systems running Blockchain Keystore and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Blockchain Keystore CVE-2025-20900

MEDIUM

Out-of-bounds Write (CWE-787)

2025-02-04 mobile.security@samsung.com

Memory Corruption Buffer Overflow Blockchain Keystore

6.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.3 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:24 vuln.today

CVE Published

Feb 04, 2025 - 08:15 nvd

MEDIUM 6.3

DescriptionCVE.org

Out-of-bounds write in Blockchain Keystore prior to version 1.3.16.5 allows local privileged attackers to write out-of-bounds memory.

AnalysisAI

Out-of-bounds write in Blockchain Keystore prior to version 1.3.16.5 allows local privileged attackers to write out-of-bounds memory. Rated medium severity (CVSS 6.3), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Out-of-bounds write in Blockchain Keystore prior to version 1.3.16.5 allows local privileged attackers to write out-of-bounds memory. Affected products include: Samsung Blockchain Keystore. Version information: version 1.3.16.5.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).