Buffer overflow in Samsung Android

CVE-2023-21489

Heap out-of-bounds write vulnerability in bootloader prior to SMR May-2023 Release 1 allows a physical attacker to execute arbitrary code.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (18.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Samsung Android — versions 11.0, 12.0, 13.0
Samsung Mobile Devices — versions Selected Android 11, 12, 13 Qualcomm devices

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21489?: CVE-2023-21489 is a high-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2023-05-04.
How severe is CVE-2023-21489?: High severity. CVSS v3 base score is 7.1 out of 10.