What is CVE-2021-25426?

CVE-2021-25426 is a high-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 7.5/10. Published 2021-07-08.

How severe is CVE-2021-25426?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in Google Android

CVE-2021-25426

Improper component protection vulnerability in SmsViewerActivity of Samsung Message prior to SMR July-2021 Release 1 allows untrusted applications to access Message files.

Vulnerability class: Information Disclosure

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

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Google Android — versions 9.0, 10.0, 11.0
Samsung Mobile Devices — versions P(9.0), Q(10.0) , R(11.0)

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

security.samsungmobile.com/securityUpdate.smsb (Vendor Advisory)
blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-2/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-25426?: CVE-2021-25426 is a high-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 7.5/10. Published 2021-07-08.
How severe is CVE-2021-25426?: High severity. CVSS v3 base score is 7.5 out of 10.