What is CVE-2023-21432?

CVE-2023-21432 is a medium-severity vulnerability in Samsung Smart Things, classified under Improper Authorization. CVSS score: 4.2/10. Published 2023-02-09.

How severe is CVE-2023-21432?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Auth bypass in Samsung Smart Things

CVE-2023-21432

Improper access control vulnerabilities in Smart Things prior to 1.7.93 allows to attacker to invite others without authorization of the owner.

Published 2023-02-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (4.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% 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 Smart Things
Samsung Mobile Smart Things — versions unspecified

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

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

Frequently asked questions

What is CVE-2023-21432?: CVE-2023-21432 is a medium-severity vulnerability in Samsung Smart Things, classified under Improper Authorization. CVSS score: 4.2/10. Published 2023-02-09.
How severe is CVE-2023-21432?: Medium severity. CVSS v3 base score is 4.2 out of 10.