CVE-2026-21000
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 access control in Galaxy Store prior to version 4.6.03.8 allows local attacker to create file with Galaxy Store privilege.
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 access control in Galaxy Store prior to version 4.6.03.8 allows a local attacker to create files with Galaxy Store privileges, enabling local privilege escalation on the affected Samsung device.
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< 4.6.03.8CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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 device is a Samsung Galaxy deviceCheck the device model in Settings > About phone > Model number. Samsung Galaxy devices will have model identifiers like SM-xxx or SC-xxx.Affected if Device is not a Samsung Galaxy device (not affected by this vulnerability)
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Verify Galaxy Store application is installedNavigate to Settings > Apps > Galaxy Store, or look for the Galaxy Store icon in the app drawer.Affected if Galaxy Store is not installed (not affected by this vulnerability)
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Determine the installed Galaxy Store versionIn Settings > Apps > Galaxy Store, tap on App info or About to view the version number. Alternatively, use ADB command: adb shell dumpsys package com.sec.android.app.samsungapps | grep versionNameAffected if Unable to determine version (verification inconclusive)
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Compare installed version against vulnerable rangeCompare the found version number to the vulnerable threshold: any version below 4.6.03.8 is vulnerable.Affected if Galaxy Store version is less than 4.6.03.8 (affected by CVE-2026-21000)
The device is affected only if it is a Samsung Galaxy device with Galaxy Store installed and the installed version is below 4.6.03.8.
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 · scoped4.6.03.8
Update Galaxy Store to version 4.6.03.8 or later through the Galaxy Store application or Samsung system update mechanism.
Galaxy Store version 4.6.03.8
- Open the Galaxy Store app on your Samsung device
- Navigate to the menu or settings section
- Look for 'Updates' or 'Check for updates' option
- Check if Galaxy Store update to version 4.6.03.8 or later is available
- If available, tap to download and install the update
- Verify the update was successful by checking the app version in Galaxy Store settings
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-21000 — 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-2026-21000 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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