What is CVE-2023-30721?

CVE-2023-30721 is a medium-severity vulnerability in Samsung Android, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.4/10. Published 2023-09-06.

How severe is CVE-2023-30721?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Information disclosure in Samsung Android

CVE-2023-30721

Insertion of sensitive information into log vulnerability in Locksettings prior to SMR Sep-2023 Release 1 allows a privileged local attacker to get lock screen match information from the log.

Published 2023-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.7% 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 11.0, 12.0, 13.0
Samsung Mobile Devices — versions SMR Sep-2023 Release in Android 11, 12, 13

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

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

Frequently asked questions

What is CVE-2023-30721?: CVE-2023-30721 is a medium-severity vulnerability in Samsung Android, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.4/10. Published 2023-09-06.
How severe is CVE-2023-30721?: Medium severity. CVSS v3 base score is 4.4 out of 10.