What is CVE-2023-42553?

CVE-2023-42553 is a medium-severity vulnerability in Samsung Email, classified under Incorrect Authorization. CVSS score: 4.0/10. Published 2023-11-07.

How severe is CVE-2023-42553?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Auth bypass in Samsung Email

CVE-2023-42553

Improper authorization verification vulnerability in Samsung Email prior to version 6.1.90.4 allows attackers to read sandbox data of email.

Vulnerability class: Broken Access Control

Published 2023-11-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Samsung Email
Samsung Mobile Email — versions 6.1.90.4

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

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

Frequently asked questions

What is CVE-2023-42553?: CVE-2023-42553 is a medium-severity vulnerability in Samsung Email, classified under Incorrect Authorization. CVSS score: 4.0/10. Published 2023-11-07.
How severe is CVE-2023-42553?: Medium severity. CVSS v3 base score is 4.0 out of 10.