CVE-2025-21020

Published Aug 6, 2025 CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Description
Out-of-bounds write in creating bitmap images in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-23770 Out-of-bounds write in creating bitmap images in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory.
History
Type Values Removed Values Added
Weaknesses CWE-787
CPEs cpe:2.3:a:samsung:blockchain_keystore:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Samsung
Samsung blockchain Keystore
Vendors & Products Samsung
Samsung blockchain Keystore
Type Values Removed Values Added
Description Out-of-bounds write in creating bitmap images in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory.
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
SamsungMobile
Published
Updated
Feb 26, 2026, 5:49 PM
Reserved
Nov 6, 2024, 2:30 AM
Status
Analyzed
Published
Aug 6, 2025, 5:15 AM
Modified
Jun 17, 2026, 8:42 AM