CVE-2023-21421
Improper Handling of Insufficient Permissions or Privileges vulnerability in...
Improper Handling of Insufficient Permissions or Privileges vulnerability in KnoxCustomManagerService prior to SMR Jan-2023 Release 1 allows attacker to access device SIM PIN.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improper Handling of Insufficient Permissions or Privileges vulnerability in KnoxCustomManagerService prior to SMR Jan-2023 Release 1 allows attacker to access device SIM PIN.
- Record
CVE-2023-21421- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-280
- Updated
- 2026-11-02
EUVDEUVD-2023-25589
Improper Handling of Insufficient Permissions or Privileges vulnerability in KnoxCustomManagerService prior to SMR Jan-2023 Release 1 allows attacker to access device SIM PIN.
- Record
EUVD-2023-25589- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3f4g-2mxw-53h3
Improper Handling of Insufficient Permissions or Privileges vulnerability in...
Improper Handling of Insufficient Permissions or Privileges vulnerability in KnoxCustomManagerService prior to SMR Jan-2023 Release 1 allows attacker to access device SIM PIN.
- Record
GHSA-3f4g-2mxw-53h3- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
NVD
Improper Handling of Insufficient Permissions or Privileges vulnerability in KnoxCustomManagerService prior to SMR Jan-2023 Release 1 allows attacker to access device SIM PIN.
- Record
CVE-2023-21421- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-280, CWE-269
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21421 is a medium vulnerability (CVSS 5.9) in Samsung Android, published February 9, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 4th percentile. No source names a fixed version.