CVE-2025-20939

5.4 mediumEPSS 0.2%

Medium (5.4) in samsung wear os. EPSS 0.2% chance of exploitation in the next 30 days.

Improper authorization in wireless download protocol in Galaxy Watch prior to SMR Apr-2025 Release 1 allows physical attackers to update device unique identifier of Watch devices.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
Published: 2025-04-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

samsung:wear_os

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04

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