CVE-2023-21428 Business logic in Samsung Mobile Devices

What is CVE-2023-21428?

CVE-2023-21428 is a medium-severity vulnerability in Samsung Android, published on 9 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper input validation vulnerability in TelephonyUI prior to SMR Jan-2023 Release 1 allows attackers to configure Preferred Call. The patch removes unused code.

Weakness: CWE-20

Which versions are affected by CVE-2023-21428?

It affects 1 product.

Products include Samsung Android.

How do I fix CVE-2023-21428?

No fix has been published for CVE-2023-21428 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-21428 being exploited?

There is no known exploitation of CVE-2023-21428 in the wild and no public exploit code.

Other vulnerabilities in Samsung Android

• CVE-2025-21042 Samsung Mobile Devices Out-of-Bounds Write Exploited High 8.8
• CVE-2025-21043 Samsung Mobile Devices Out-of-Bounds Write Exploited High 8.8
• CVE-2021-25487 Samsung Mobile Devices Out-of-Bounds Read Exploited High 7.3
• CVE-2021-25394 Samsung Mobile Devices Race Condition Exploited Medium 6.4
• CVE-2021-25395 Samsung Mobile Devices Race Condition Exploited Medium 6.4

All Samsung Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7jr4-mg5p-52mh.