What is CVE-2023-30733?

CVE-2023-30733 is a high-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-10-04.

How severe is CVE-2023-30733?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Samsung Android

CVE-2023-30733

Stack-based Buffer Overflow in vulnerability HDCP trustlet prior to SMR Oct-2023 Release 1 allows local privileged attackers to perform code execution.

Vulnerability class: Buffer Overflow

Published 2023-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (5.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security.samsungmobile.com/securityUpdate.smsb (Vendor Advisory)

Frequently asked questions

What is CVE-2023-30733?: CVE-2023-30733 is a high-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-10-04.
How severe is CVE-2023-30733?: High severity. CVSS v3 base score is 7.8 out of 10.