What is CVE-2023-21420?

CVE-2023-21420 is a high-severity vulnerability in Samsung Android, classified under Use of Externally-Controlled Format String. CVSS score: 7.3/10. Published 2023-02-09.

How severe is CVE-2023-21420?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Samsung Android

CVE-2023-21420

Use of Externally-Controlled Format String vulnerabilities in STST TA prior to SMR Jan-2023 Release 1 allows arbitrary code execution.

EPSS: 0.002 (10.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H.

Affected products

Samsung Android — versions 10.0, 11.0
Samsung Mobile Devices — versions Q(10), R(11) devices with Teegris

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21420?: CVE-2023-21420 is a high-severity vulnerability in Samsung Android, classified under Use of Externally-Controlled Format String. CVSS score: 7.3/10. Published 2023-02-09.
How severe is CVE-2023-21420?: High severity. CVSS v3 base score is 7.3 out of 10.