CVE-2025-21020
Medium
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.
SeverityMedium
CVSS5.7
Exploit probability—
Product
Samsung Blockchain Keystore
PublishedAug 6, 2025
First seenAug 6, 2025
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- samsung blockchain_keystore1.3.17.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| samsung blockchain_keystore | v < 1.3.17.2 | 1.3.17.2 |
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