What is CVE-2025-20994?

CVE-2025-20994 is a medium-severity vulnerability in Samsung Internet, classified under CWE-276: INCORRECT DEFAULT PERMISSIONS. CVSS score: 4.5/10. Published 2025-06-04.

How severe is CVE-2025-20994?

Medium severity. CVSS v3 base score is 4.5 out of 10.

Vulnerability in Samsung Internet

CVE-2025-20994

Improper handling of insufficient permission in SyncClientProvider in Samsung Internet installed on non-Samsung Device prior to version 28.0.0.59 allows local attackers to access read and write arbitrary files.

Published 2025-06-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.001 (1.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.4% 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 Internet
Samsung Mobile Internet — versions 28.0.0.59

References

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

Frequently asked questions

What is CVE-2025-20994?: CVE-2025-20994 is a medium-severity vulnerability in Samsung Internet, classified under CWE-276: INCORRECT DEFAULT PERMISSIONS. CVSS score: 4.5/10. Published 2025-06-04.
How severe is CVE-2025-20994?: Medium severity. CVSS v3 base score is 4.5 out of 10.