CVE-2023-21421: Samsung Android

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Handling of Insufficient Permissions or Privileges vulnerability in KnoxCustomManagerService prior to SMR Jan-2023 Release 1 allows attacker to access device SIM PIN.

Affected products

• Samsung Android: version 10.0 only; version 11.0 only; version 12.0 only; version 13.0 only

Published 2023-02-09. Last modified 2026-06-17.