dbcve.org
ThinosOperating system · Dell

CVE-2025-43882

HIGH · 7.8 CVSS v3.1 Published 2025-08-27
Fix available
A fix is available. Upgrade to 2508 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

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 · unedited
Dell ThinOS 10, versions prior to 2508_10.0127, contains an Unverified Ownership vulnerability. A local low-privileged attacker could potentially exploit this vulnerability leading to Unauthorized Access.

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 confidence

Dell ThinOS 10 contains an Unverified Ownership vulnerability where the operating system fails to properly validate ownership of certain system resources or objects. A local low-privileged attacker with access to the thin client system could exploit this flaw to gain unauthorized access to resources or functionality that should be restricted based on ownership verification.

MitigationUpgrade Dell ThinOS 10 to version 2508_10.0127 or later to address the Unverified Ownership vulnerability. For enterprise deployments, test the upgrade in a controlled environment before broad deployment to thin client devices.

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
ThinosOperating system
Affected:< 2508

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Dell ThinOS 10 is installed
    Access the thin client's system information or about screen. This is typically found in the system settings, About section, or by running the appropriate system info command for ThinOS.
    Affected if The system is not running Dell ThinOS 10 (for example, it is a different Dell product or operating system)
  2. Retrieve the ThinOS version number
    Locate the installed ThinOS version from the system. In ThinOS, this is usually displayed in the system information panel, about dialog, or can be obtained via the CLI if available.
    Affected if Unable to determine the ThinOS version from the system
  3. Compare installed version against affected range
    Compare the retrieved ThinOS version to the affected range. The vulnerability affects versions prior to version 2508.
    Affected if The installed ThinOS version is less than 2508 (for example, 2407, 2312, etc.)
  4. Verify system accessibility
    Assess whether the thin client is accessible to local users. This vulnerability requires a local attacker with access to the thin client system.
    Affected if The thin client is physically or remotely accessible to untrusted local users

The environment is affected if the thin client runs Dell ThinOS 10 with a version number lower than 2508.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 2508 or later
Fixed in 2508
Interim mitigation

Upgrade Dell ThinOS 10 to version 2508_10.0127 or later to address the Unverified Ownership vulnerability. For enterprise deployments, test the upgrade in a controlled environment before broad deployment to thin client devices.

Recommended fix Moderate confidence

ThinOS 10 version 2508_10.0127 or later

  1. Verify current ThinOS version by navigating to System Setup > System Information or using the admin console
  2. Download ThinOS firmware version 2508_10.0127 or later from Dell support website (support.dell.com)
  3. Apply the firmware update through the ThinOS management console (Wyse Management Suite or Dell True IoT)
  4. Alternatively, use the local admin interface: System Setup > Update > Manual Update and select the downloaded firmware package
  5. Verify the update was successful by checking the version after reboot
  6. Confirm the version shows 2508_10.0127 or later

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Thinos Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-43882 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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