CVE-2023-21421: High severity samsung android vulnerability
Published Feb 9, 2023
·Updated
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 Software
128 affected components
Samsung android=10.0
Samsung android=10.0-smr-apr-2020-r1
Samsung android=10.0-smr-apr-2021-r1
Samsung android=10.0-smr-apr-2022-r1
Samsung android=10.0-smr-apr-2023-r1
Samsung android=10.0-smr-aug-2020-r1
Samsung android=10.0-smr-aug-2021-r1
Samsung android=10.0-smr-aug-2022-r1
Samsung android=10.0-smr-aug-2023-r1
Samsung android=10.0-smr-dec-2019-r1
Samsung android=10.0-smr-dec-2020-r1
Samsung android=10.0-smr-dec-2021-r1
Samsung android=10.0-smr-dec-2022-r1
Samsung android=10.0-smr-dec-2023-r1
Samsung android=10.0-smr-feb-2020-r1
Samsung android=10.0-smr-feb-2021-r1
Samsung android=10.0-smr-feb-2022-r1
Samsung android=10.0-smr-feb-2023-r1
Samsung android=10.0-smr-jan-2020-r1
Samsung android=10.0-smr-jan-2021-r1
Samsung android=10.0-smr-jan-2022-r1
Samsung android=10.0-smr-jul-2020-r1
Samsung android=10.0-smr-jul-2021-r1
Samsung android=10.0-smr-jul-2022-r1
Samsung android=10.0-smr-jul-2023-r1
Samsung android=10.0-smr-jun-2020-r1
Samsung android=10.0-smr-jun-2021-r1
Samsung android=10.0-smr-jun-2022-r1
Samsung android=10.0-smr-jun-2023-r1
Samsung android=10.0-smr-mar-2020-r1
Samsung android=10.0-smr-mar-2021-r1
Samsung android=10.0-smr-mar-2022-r1
Samsung android=10.0-smr-mar-2023-r1
Samsung android=10.0-smr-may-2020-r1
Samsung android=10.0-smr-may-2021-r1
Samsung android=10.0-smr-may-2022-r1
Samsung android=10.0-smr-may-2023-r1
Samsung android=10.0-smr-nov-2019-r1
Samsung android=10.0-smr-nov-2020-r1
Samsung android=10.0-smr-nov-2021-r1
Samsung android=10.0-smr-nov-2022-r1
Samsung android=10.0-smr-nov-2023-r1
Samsung android=10.0-smr-oct-2020-r1
Samsung android=10.0-smr-oct-2021-r1
Samsung android=10.0-smr-oct-2022-r1
Samsung android=10.0-smr-oct-2023-r1
Samsung android=10.0-smr-sep-2020-r1
Samsung android=10.0-smr-sep-2021-r1
Samsung android=10.0-smr-sep-2022-r1
Samsung android=10.0-smr-sep-2023-r1
Samsung android=11.0
Samsung android=11.0-smr-apr-2021-r1
Samsung android=11.0-smr-apr-2022-r1
Samsung android=11.0-smr-apr-2023-r1
Samsung android=11.0-smr-aug-2021-r1
Samsung android=11.0-smr-aug-2022-r1
Samsung android=11.0-smr-aug-2023-r1
Samsung android=11.0-smr-dec-2020-r1
Samsung android=11.0-smr-dec-2021-r1
Samsung android=11.0-smr-dec-2022-r1
Samsung android=11.0-smr-dec-2023-r1
Samsung android=11.0-smr-feb-2021-r1
Samsung android=11.0-smr-feb-2022-r1
Samsung android=11.0-smr-feb-2023-r1
Samsung android=11.0-smr-jan-2021-r1
Samsung android=11.0-smr-jan-2022-r1
Samsung android=11.0-smr-jul-2021-r1
Samsung android=11.0-smr-jul-2022-r1
Samsung android=11.0-smr-jul-2023-r1
Samsung android=11.0-smr-jun-2021-r1
Samsung android=11.0-smr-jun-2022-r1
Samsung android=11.0-smr-jun-2023-r1
Samsung android=11.0-smr-mar-2021-r1
Samsung android=11.0-smr-mar-2022-r1
Samsung android=11.0-smr-mar-2023-r1
Samsung android=11.0-smr-may-2021-r1
Samsung android=11.0-smr-may-2022-r1
Samsung android=11.0-smr-may-2023-r1
Samsung android=11.0-smr-nov-2021-r1
Samsung android=11.0-smr-nov-2022-r1
Samsung android=11.0-smr-nov-2023-r1
Samsung android=11.0-smr-oct-2021-r1
Samsung android=11.0-smr-oct-2022-r1
Samsung android=11.0-smr-oct-2023-r1
Samsung android=11.0-smr-sep-2021-r1
Samsung android=11.0-smr-sep-2022-r1
Samsung android=11.0-smr-sep-2023-r1
Samsung android=12.0
Samsung android=12.0-smr-apr-2022-r1
Samsung android=12.0-smr-apr-2023-r1
Samsung android=12.0-smr-aug-2022-r1
Samsung android=12.0-smr-aug-2023-r1
Samsung android=12.0-smr-dec-2021-r1
Samsung android=12.0-smr-dec-2022-r1
Samsung android=12.0-smr-dec-2023-r1
Samsung android=12.0-smr-feb-2022-r1
Samsung android=12.0-smr-feb-2023-r1
Samsung android=12.0-smr-jan-2022-r1
Samsung android=12.0-smr-jul-2022-r1
Samsung android=12.0-smr-jul-2023-r1
Samsung android=12.0-smr-jun-2022-r1
Samsung android=12.0-smr-jun-2023-r1
Samsung android=12.0-smr-mar-2022-r1
Samsung android=12.0-smr-mar-2023-r1
Samsung android=12.0-smr-may-2022-r1
Samsung android=12.0-smr-may-2023-r1
Samsung android=12.0-smr-nov-2021-r1
Samsung android=12.0-smr-nov-2022-r1
Samsung android=12.0-smr-nov-2023-r1
Samsung android=12.0-smr-oct-2022-r1
Samsung android=12.0-smr-oct-2023-r1
Samsung android=12.0-smr-sep-2022-r1
Samsung android=12.0-smr-sep-2023-r1
Samsung android=13.0
Samsung android=13.0-smr-apr-2023-r1
Samsung android=13.0-smr-aug-2023-r1
Samsung android=13.0-smr-dec-2022-r1
Samsung android=13.0-smr-dec-2023-r1
Samsung android=13.0-smr-feb-2023-r1
Samsung android=13.0-smr-jul-2023-r1
Samsung android=13.0-smr-jun-2023-r1
Samsung android=13.0-smr-mar-2023-r1
Samsung android=13.0-smr-may-2023-r1
Samsung android=13.0-smr-nov-2022-r1
Samsung android=13.0-smr-nov-2023-r1
Samsung android=13.0-smr-oct-2022-r1
Samsung android=13.0-smr-oct-2023-r1
Samsung android=13.0-smr-sep-2023-r1
Event History
Feb 9, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2023-21421?
CVE-2023-21421 is considered a high severity vulnerability allowing unauthorized access to the device SIM PIN.
2
How do I fix CVE-2023-21421?
To mitigate CVE-2023-21421, update your Samsung device to the January 2023 security patch or later.
3
What products are affected by CVE-2023-21421?
CVE-2023-21421 affects select versions of Samsung Android 10.0 and 11.0 operating systems.
4
Is there a workaround for CVE-2023-21421?
There is no official workaround for CVE-2023-21421; applying the update is recommended.
5
Can CVE-2023-21421 be exploited remotely?
CVE-2023-21421 may not require physical access to exploit, which increases its risk.