What is CVE-2026-21077?

CVE-2026-21077 is a medium-severity vulnerability in Samsung Health, classified under Incorrect Authorization. CVSS score: 5.5/10. Published 2026-08-10.

How severe is CVE-2026-21077?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Auth bypass in Samsung Health

CVE-2026-21077

Incorrect authorization in Samsung Health prior to version 7.0.0 allows local attackers to access sensitive information.

Vulnerability class: Broken Access Control

Published 2026-08-10 · last modified 2026-08-19.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.6th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Samsung Health
Samsung Mobile Health — versions 7.0.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

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

Frequently asked questions

What is CVE-2026-21077?: CVE-2026-21077 is a medium-severity vulnerability in Samsung Health, classified under Incorrect Authorization. CVSS score: 5.5/10. Published 2026-08-10.
How severe is CVE-2026-21077?: Medium severity. CVSS v3 base score is 5.5 out of 10.