Buffer overflow in Samsung Android

CVE-2023-21476

Out-of-bounds Write vulnerability in libaudiosaplus_sec.so library prior to SMR Apr-2023 Release 1 allows local attacker to execute arbitrary code.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (4.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Samsung Android — versions 11.0, 12.0, 13.0
Samsung Mobile Devices — versions SMR Apr-2023 Release in Android 11, 12, 13

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21476?: CVE-2023-21476 is a high-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 8.0/10. Published 2025-09-03.
How severe is CVE-2023-21476?: High severity. CVSS v3 base score is 8.0 out of 10.