CVE-2026-40715
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 10, versions prior to ThinOS10 2602_10.0765, contain an Improper Access Control vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Privilege Escalation.
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 10 contains an Improper Access Control vulnerability where a low-privileged user with local physical access can escalate privileges to administrator levels, likely by exploiting insufficient validation on privileged system functions or resources.
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< 2602_10.0765CVSS 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 10 version through admin interfaceLog into the ThinOS admin console (typically via https://<client-ip> or through Wyse Management Suite), navigate to System Information or About section, and record the displayed ThinOS version numberAffected if The displayed version is earlier than 2602_10.0765 (for example, 2602_10.0764 or below)
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Verify version through management platformIf using Wyse Management Suite or Dell Wyse Device Manager, query the device inventory or system information to retrieve the ThinOS build versionAffected if The reported version in the management console is less than 2602_10.0765
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Confirm local user access existsDetermine if untrusted or low-privileged local user accounts exist on the ThinOS client that could potentially log in locallyAffected if Low-privileged local accounts are present on the system (the vulnerability requires a local attacker)
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Check for privilege escalation pathsReview user account configurations and group memberships through the ThinOS admin interface under User Accounts or Local Users settingsAffected if Standard or limited user accounts with lower permissions are configured on the system
A system is affected if it runs Dell ThinOS 10 with a version number earlier than 2602_10.0765 and has low-privileged local user accounts present.
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 · scoped2602_10.0765
Upgrade Dell ThinOS 10 to version 2602_10.0765 or later to obtain the vendor patch for this access control flaw.
ThinOS10 version 2602_10.0765 (or later)
- 1. Identify the current ThinOS version via the system information page or administrative console.
- 2. Download the ThinOS 10 firmware image version 2602_10.0765 (or a later released version) from the Dell support site (www.dell.com).
- 3. Verify the integrity of the downloaded image using the SHA256 checksum provided by Dell.
- 4. Apply the firmware update through the ThinOS management interface or Dell's firmware update tool, following the standard upgrade procedure.
- 5. Reboot the device as prompted and confirm the system is now running version 2602_10.0765.
- 6. Verify that the improper access control vulnerability is resolved by testing the low-privilege account functionality.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40715 — 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-2026-40715 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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