CVE-2025-20994
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 · uneditedImproper handling of insufficient permission in SyncClientProvider in Samsung Internet installed on non-Samsung Device prior to version 28.0.0.59 allows local attackers to access read and write arbitrary files.
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 · high confidenceImproper permission handling in SyncClientProvider in Samsung Internet browser (non-Samsung devices, versions prior to 28.0.0.59) allows local attackers to bypass permission checks and perform arbitrary file read/write operations on the device filesystem.
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< 28.0.0.59CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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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Confirm Samsung Internet browser is installedCheck for the app package name 'com.sec.android.app.sbrowser' in your device's installed applications via Settings > Apps or using ADB command: 'adb shell pm list packages | grep sbrowser'Affected if The package com.sec.android.app.sbrowser is found on the device
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Retrieve the installed version of Samsung InternetOpen Samsung Internet app, go to Settings > About Internet > App version, or use ADB: 'adb shell dumpsys package com.sec.android.app.sbrowser | grep versionName'Affected if The displayed version number is lower than 28.0.0.59
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Identify the device manufacturerCheck the device model and manufacturer via Settings > About Phone > Model, or use ADB: 'adb shell getprop ro.product.manufacturer' and 'adb shell getprop ro.product.model'Affected if The device is not manufactured by Samsung (e.g., Google, OnePlus, Xiaomi, etc.)
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Confirm the vulnerability conditionCombine the results: verify Samsung Internet version < 28.0.0.59 AND the device is a non-Samsung deviceAffected if Both conditions are true: Samsung Internet version is below 28.0.0.59 AND the device is made by a manufacturer other than Samsung
You are affected if Samsung Internet browser version 28.0.0.59 or earlier is installed on a non-Samsung device, as the improper permission handling in SyncClientProvider only applies under this specific combination.
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 · scoped28.0.0.59
Update Samsung Internet browser to version 28.0.0.59 or later on affected non-Samsung devices to remediate the improper permission handling in SyncClientProvider.
28.0.0.59
- Open the Samsung Internet browser on your device
- Navigate to Settings > About Internet to check your current version number
- If the version is earlier than 28.0.0.59, open Google Play Store (Android) or Samsung Galaxy Store
- Search for Samsung Internet and tap Update to install version 28.0.0.59 or later
- Alternatively, enable auto-updates in your app store settings to receive future security updates automatically
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-20994 — 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-2025-20994 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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