CVE-2025-20984
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIncorrect default permission in Samsung Cloud for Galaxy Watch prior to SMR Jun-2025 Release 1 allows local attackers to access data in Samsung Cloud for Galaxy Watch.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceSamsung Cloud for Galaxy Watch had incorrect default permission settings that allowed local attackers (potentially with physical device access or a malicious app on the same device) to bypass intended access controls and read sensitive data stored in Samsung Cloud. The vulnerability stems from overly permissive default ACLs or permission flags in the cloud sync component.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 5.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the installed Samsung Wear OS versionOn the Galaxy Watch, go to Settings > About Watch > Software Information, or use the Galaxy Wearable app on the paired phone to view the Wear OS version numberAffected if The Wear OS version is exactly 5.0 (older or newer versions are not affected by this specific CVE)
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Verify Samsung Cloud sync is enabledOn the Galaxy Watch, navigate to Settings > Accounts and Backup > Samsung Cloud, or check via the Galaxy Wearable app under Watch Settings > Samsung CloudAffected if Samsung Cloud sync is turned ON - this vulnerability only affects devices where cloud sync is actively used
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Review cloud sync permission configurationCheck the Samsung Cloud sync settings on the Galaxy Watch. Look for any permission or access control settings related to data sync. On the paired phone, open Galaxy Wearable > Watch Settings > Samsung Cloud > ensure explicit user authorization is required for syncAffected if Cloud sync is configured with default/automated permissions (no explicit user authorization required) - the vulnerability stems from overly permissive default ACLs
You are affected if your Galaxy Watch runs Samsung Wear OS version 5.0 with Samsung Cloud sync enabled using default permission settings rather than requiring explicit user authorization for each sync action.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate Galaxy Watch devices to SMR Jun-2025 Release 1 or later, which corrects the default permission configuration. For legacy systems, review and restrict cloud sync permissions to require explicit user authorization.
SMR Jun-2025 Release 1
- On the Galaxy Watch, open the Settings app
- Navigate to Watch Settings > Watch software update
- Tap on Download and install to check for the latest update
- Download and install the SMR Jun-2025 Release 1 update which contains the security fix
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-20984 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-20984 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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