CVE-2025-21078 | BDVDB-2026-300780 Detail

SamsungSmart Switch

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: adjacent.

Weaknesses#

CWE-330 Use of Insufficiently Random Values

References#

https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=11

Exploit#

No public exploit known

History#

Version 12025-11-05Record published in the CVE List.
Version 22026-02-26Most recent update recorded in the CVE List.

Published

Published: 2025-11-05
Last modified: 2026-02-26

Vendor information

Vendor: Samsung
Product: Smart Switch

All Samsung vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 13.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
3.7.68.6

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).