# CVE-2026-56687: Dell ThinOS 10 obsolete feature in UI unauthorized access

Source: https://junglewise.ai/threats/cve-2026-56687-dell-thinos-10-obsolete-feature-in-ui-unauthorized-access  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-15. Updated: 2026-07-15  
License: CC BY 4.0 with a link back

CVE-2026-56687 · Severity: high · CVSS 7.8 · Published 2026-07-15

Dell ThinOS 10, an operating system used in thin client devices for secure cloud and VDI access, contains a vulnerability where an obsolete user interface feature remains accessible. A user with low-level access to the device could exploit this legacy feature to gain unauthorized access to the system. This could potentially allow an attacker to bypass security restrictions or access sensitive information on the local terminal.

Technologies: [Dell ThinOS](https://junglewise.ai/threats/technologies/thinos). Vendors: [Dell](https://junglewise.ai/threats/vendors/dell).

## Quick answers

**Is CVE-2026-56687 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-56687 being exploited in the wild.

**How severe is CVE-2026-56687?** High severity, with a CVSS score of 7.8, published 15 July 2026.

**Which products and versions are affected?** Dell ThinOS Versions prior to 2605_10.2100.

**Is there a fix for CVE-2026-56687?** A patch was published on 2026-07-03: Remediated version 2605_10.2100 released. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-56687 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-56687?** Check whether you run Dell ThinOS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Dell ThinOS 10 is affected by an 'Obsolete Feature in UI' vulnerability (CWE-448). The flaw exists because a legacy or deprecated feature remains present in the user interface, providing a path for unauthorized actions. A local attacker with low privileges can interact with this feature to escalate their access or bypass intended security controls. The vulnerability is addressed in version 2605_10.2100 or later. The attack requires local access but no user interaction.

## Affected products

- Dell ThinOS 10 Versions prior to 2605_10.2100

## Timeline

- 2026-07-03: patched: Remediated version 2605_10.2100 released.
- 2026-07-15: advisory: Dell Security Advisory DSA-2026-300 published.
- 2026-07-15: disclosed: CVE-2026-56687 published to NVD.

## References

- [https://www.dell.com/support/kbdoc/en-us/000489640/dsa-2026-300-security-update-for-dell-thinos-10-for-multiple-vulnerabilities](https://www.dell.com/support/kbdoc/en-us/000489640/dsa-2026-300-security-update-for-dell-thinos-10-for-multiple-vulnerabilities)

## Related threats

- [Dell ThinOS 10 OS command injection](https://junglewise.ai/threats/cve-2026-81468-dell-thinos-10-os-command-injection)
- [Dell ThinOS 10 OS command injection](https://junglewise.ai/threats/cve-2026-81467-dell-thinos-10-os-command-injection)
- [Dell ThinOS 10 code integrity check bypass](https://junglewise.ai/threats/cve-2026-81052-dell-thinos-10-code-integrity-check-bypass)
- [Dell ThinOS 10 security version number bypass](https://junglewise.ai/threats/cve-2026-81051-dell-thinos-10-security-version-number-bypass)
- [Dell ThinOS 10 missing integrity check in code execution](https://junglewise.ai/threats/cve-2026-81049-dell-thinos-10-missing-integrity-check-in-code-execution)