CVE-2025-20918
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 · uneditedOut-of-bounds read in applying extra data of base content in Samsung Notes prior to version 4.4.26.71 allows attackers to read out-of-bounds memory.
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 confidenceThis is an out-of-bounds read vulnerability in Samsung Notes app versions prior to 4.4.26.71. The flaw exists in the function that applies extra data to base content, allowing a local or remote attacker to read memory beyond allocated buffer boundaries, potentially exposing sensitive information.
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< 4.4.26.71CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/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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Locate Samsung Notes app versionOpen Samsung Notes app, tap the menu (three lines) or go to Settings, then look for 'About Samsung Notes' or 'Version' information. Alternatively, go to Android Settings > Apps > Samsung Notes to view the installed version.Affected if The displayed version number is lower than 4.4.26.71 (for example, 4.4.20.50 or 4.4.25.10)
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Confirm version sourceVerify where the installed version came from (Galaxy Store or Google Play Store). Check the app listing in the respective store to see if an update to 4.4.26.71 or later is available.Affected if The store shows version 4.4.26.71 or later as the current version, but your installed version is older
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Check for pending updatesOpen Galaxy Store or Google Play Store, search for Samsung Notes, and check if an update is available. Compare the available version number to 4.4.26.71.Affected if An update to version 4.4.26.71 or higher is available, indicating your current version is below the fixed release
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Identify vulnerable conditionUnderstand that the vulnerability is triggered when Samsung Notes processes content (notes) containing specially crafted extra data. The app must be able to open or sync notes for the flaw to be exercised.Affected if You use Samsung Notes to open or sync notes from external sources, and your installed version is below 4.4.26.71
You are affected if the installed Samsung Notes version is below 4.4.26.71, as the out-of-bounds read vulnerability exists in all prior versions.
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 · scoped4.4.26.71
Update Samsung Notes to version 4.4.26.71 or later from the Galaxy Store or Google Play Store to patch the vulnerability.
4.4.26.71
- Open the Samsung Notes application on your device
- Navigate to the app settings or check for updates in the Samsung Galaxy Store/Google Play Store
- Update Samsung Notes to version 4.4.26.71 or later
- Verify the installed version is 4.4.26.71 or higher after the update completes
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 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-2025-20918 — 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-2025-20918 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
- No spam, self-promotion, credentials, or personal data