What is CVE-2021-25433?

CVE-2021-25433 is a medium-severity vulnerability in Linux Tizen, classified under Improper Authorization. CVSS score: 5.5/10. Published 2021-07-08.

How severe is CVE-2021-25433?

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

Is CVE-2021-25433 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Linux Tizen

CVE-2021-25433

Improper authorization vulnerability in Tizen factory reset policy prior to Firmware update JUL-2021 Release allows untrusted applications to perform factory reset using dbus signal.

Published 2021-07-08 · last modified 2026-06-17.

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:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (11.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.6% 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

Linux Tizen
Samsung Mobile Tizen Wearable Devices — versions Tizen 5.5

Weakness classification (CWE)

CWE-285 — Improper Authorization

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2021-25433?: CVE-2021-25433 is a medium-severity vulnerability in Linux Tizen, classified under Improper Authorization. CVSS score: 5.5/10. Published 2021-07-08.
How severe is CVE-2021-25433?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-25433 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.