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TI-2025-15017 Aliases CVE-2025-21021GHSA-gmg7-p663-wm59

Out-of-bounds write in Samsung Blockchain Keystore

Priority LOW 31CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Out-of-bounds write in drawing pinpad in Blockchain Keystore prior to version 1.3.17.2 allows local privileged attackers to write out-of-bounds memory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00146 3rd percentileScored 2026-11-07
Fix Fixed Blockchain Keystore (Samsung Mobile): 1.3.17.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SamsungBlockchain Keystore—1.3.17.2Patch availableCNA
  • Blockchain Keystore VendorSamsung Affected — Fixed in 1.3.17.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:samsung:blockchain_keystore:*:*:*:*:*:*:*:*before 1.3.17.2VulnerableSamsung
  • cpe:2.3:a:samsung:blockchain_keystore:*:*:*:*:*:*:*:* Versions before 1.3.17.2 Vulnerable ·Samsung

Remediation

  • Fix · CNA Blockchain Keystore (Samsung Mobile) Fixed in 1.3.17.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-21021
  2. 2026-10-03 Alias added: GHSA-gmg7-p663-wm59

References

Advisory 1

  • TI-2023-14536 Protection Mechanism Failure in bc_tui trustlet from Samsung Blockchain Keystore prior to… CVSS 3.1HIGH 7.8
  • TI-2025-15016 Out-of-bounds write in Samsung Blockchain Keystore CVSS 3.1MEDIUM 6.7
  • TI-2025-15013 Out-of-bounds write in Samsung Blockchain Keystore CVSS 3.1MEDIUM 6.7
  • TI-2024-32991 Improper validation of integrity check value in Blockchain Keystore prior to version… CVSS 3.1MEDIUM 6.7
  • TI-2025-14896 Out-of-bounds write in Samsung Blockchain Keystore CVSS 3.1MEDIUM 6.3
  • TI-2025-15014 Out-of-bounds read in Samsung Blockchain Keystore CVSS 3.1MEDIUM 4.4
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences