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CVE-2025-20939Improper authorization in wireless download protocol in Galaxy Watch prior to SMR Apr-2025 Release 1 allows physical attackers to update…
- 5.4MediumCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 91% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By SamsungMobile
- 5 months later
· 5 months later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SamsungMobileCNA (assigner) | 3.1 | Medium5.4 | CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L |
| NVDNVD · Analyzed | 3.1 | Medium5.4 | CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L |
- EPSS (exploitation in 30 days)
- 0.20% · top 91% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Affected products
Samsung Mobile · Samsung Mobile Devices
- unaffected SMR Apr-2025 Release in Android Watch 14
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-10073 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-20939)Record last updated .