Vulnerability in Samsung Smart Switch

CVE-2025-21078

Use of insufficiently random value of secretKey in Smart Switch prior to version 3.7.68.6 allows adjacent attackers to access backup data from applications.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (10.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-21078: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

References

Frequently asked questions

What is CVE-2025-21078?
CVE-2025-21078 is a high-severity vulnerability in Samsung Smart Switch, classified under CWE-330 USE OF INSUFFICIENTLY RANDOM VALUES. CVSS score: 8.8/10. Published 2025-11-05.
How severe is CVE-2025-21078?
High severity. CVSS v3 base score is 8.8 out of 10.