CVE-2025-26331
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 · uneditedDell ThinOS 2411 and prior, contains an Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to arbitrary code execution.
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 confidenceDell ThinOS 2411 and prior contains a command injection vulnerability where improper neutralization of special elements allows a low-privileged local attacker to execute arbitrary code on the affected thin client system.
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<= 2411CVSS 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
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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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Check ThinOS version numberOn the ThinOS client, access System Information via the desktop right-click menu or by pressing Ctrl+Alt+F during boot. Alternatively, check your Wyse Device Manager (WDM) or management console for the ThinOS version inventory.Affected if The displayed version is 2411 or any version number lower than 2411 (for example, 2410, 2409, 2308).
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Identify the build or patch levelIn ThinOS System Information, look for the full version string which includes both the release number and build/patch level (for example, ThinOS 9.5.2411). Compare this against the 2411 baseline.Affected if The build number is 2411 or lower.
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Confirm local user access existsVerify that local user accounts exist on the ThinOS client or that the system permits local console access. Check if kiosk mode or user isolation settings are disabled, which would allow a low-privileged user to interact with the OS shell.Affected if Standard or low-privilege local users can access the command shell or execute scripts on the thin client.
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Review management console for version inventoryIf managed via WDM, Dell ADC, or similar, query the device inventory report to identify all ThinOS clients and their reported OS versions.Affected if Any managed ThinOS device shows version 2411 or prior in the central console.
A ThinOS client is affected if it runs version 2411 or any earlier version and permits local user access to execute commands or scripts.
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.
From vendor dataApply the vendor-supplied patch for Dell ThinOS 2412 or later to remediate the command injection vulnerability. Restrict local access to trusted personnel and follow least-privilege principles until the patch can be deployed.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-26331 — 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-2025-26331 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
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