SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-20939

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.

MEDIUM 5.4EPSS 0.19%

Does this matter?

Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
EPSS
0.19% probability · 9th percentile
CISA KEV
Not listed
Affected
samsung/wear os
Source
mobile.security@samsung.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.