CVE-2025-21020

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

Medium · published August 6, 2025

CVSS v3.1
5.7
EPSS
0%
Percentile
2.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00129 · 2.3th percentile
Published
2025-08-06T04:23Z
EPSS history
Timeline
  • 06 AUG 04:23Z
    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
    cvelistv5