Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-20939

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
08/04/2025
Last modified:
27/01/2026

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.

Impact

Vector 3.x
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): High
Availability (A): Low

Base Score 3.x
5.40
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:samsung:wear_os:5.0:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_4:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_4_classic:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_5:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_5_pro:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_6:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_6_classic:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_7:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_fe:-:*:*:*:*:*:*:*
cpe:2.3:h:samsung:galaxy_watch_ultra:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools