CVE-2025-21020 MEDIUM

CVE-2025-21020

Published August 6, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

5.7/10
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 6, 2025 CVE published
February 26, 2026 Record updated