CyberSecBulletin
CVE-2026-56687NVD status: Awaiting Analysis

ThinOS 10: Obsolete Feature in UI

CVE-2026-56687 is a high-severity obsolete feature in UI vulnerability in ThinOS 10 from Dell, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 2605_10.2100 as the first without the flaw, so updating ThinOS 10 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.15% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update ThinOS 10 to 2605_10.2100 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
DellThinOS 10before 2605_10.21002605_10.2100

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (emc.com).

Official description

Dell ThinOS 10, versions prior to 2605_10.2100, contain an Obsolete Feature in UI vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Unauthorized access.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Obsolete Feature in UI

A UI function is obsolete and the product does not warn the user.

How developers prevent this class of flaw

  • Remove the obsolete feature from the UI. Warn the user that the feature is no longer supported.

More Obsolete Feature in UI vulnerabilities (CWE-448)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in ThinOS 10

All ThinOS 10 vulnerabilities

Recent Obsolete Feature in UI vulnerabilities

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