How severe is CVE-2025-21078?

CVE-2025-21078 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-21078 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21078?

CVE-2025-21078 affects Samsung Smart Switch. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21078?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-21078 have an EU (EUVD) identifier?

Yes. CVE-2025-21078 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37795.

When was CVE-2025-21078 published?

CVE-2025-21078 was published on 2025-11-05 and last updated on 2026-06-17.

CVE-2025-21078

CVE-2025-21078 is a high-severity vulnerability in Samsung Smart Switch with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37795
Affected product: Samsung Smart Switch
Published: 2025-11-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-21078?: CVE-2025-21078 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-21078 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21078?: CVE-2025-21078 affects Samsung Smart Switch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21078?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-21078 have an EU (EUVD) identifier?: Yes. CVE-2025-21078 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37795.
When was CVE-2025-21078 published?: CVE-2025-21078 was published on 2025-11-05 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:samsung:smart_switch:*:*:*:*:*:*:*:*

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