What is CVE-2023-21454?

CVE-2023-21454 is a low-severity vulnerability in Samsung Android, classified under Improper Authorization. CVSS score: 2.4/10. Published 2023-03-16.

How severe is CVE-2023-21454?

Low severity. CVSS v3 base score is 2.4 out of 10.

Auth bypass in Samsung Android

CVE-2023-21454

Improper authorization in Samsung Keyboard prior to SMR Mar-2023 Release 1 allows physical attacker to access users text history on the lockscreen.

Published 2023-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.5% 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 11.0, 12.0, 13.0
Samsung Mobile Devices — versions Android 13

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

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

Frequently asked questions

What is CVE-2023-21454?: CVE-2023-21454 is a low-severity vulnerability in Samsung Android, classified under Improper Authorization. CVSS score: 2.4/10. Published 2023-03-16.
How severe is CVE-2023-21454?: Low severity. CVSS v3 base score is 2.4 out of 10.