CVE-2021-0110

Local denial of service

Published Nov 17, 2021 · Updated Aug 3, 2024

Improper access control in Intel Thunderbolt 3 and 4 Windows DCH Drivers before 1.41.1054.0 allows local users to interrupt service. Intel has not published the affected driver interface, the missing access-control check, or the input that triggers the denial of service. Exploitation requires local access and no authentication; the published impact is limited to availability loss.

CVSS severity6.2
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Intel Thunderbolt 3 and 4 Windows DCH Drivers before 1.41.1054.0 allows local users to interrupt service. Intel has not published the affected driver interface, the missing access-control check, or the input that triggers the denial of service. Exploitation requires local access and no authentication; the published impact is limited to availability loss.

The record

CVE
CVE-2021-0110
Published
Nov 17, 2021
Updated
Aug 3, 2024
Vendor
Intel Corporation
Product
Intel Thunderbolt 3 and 4 Windows DCH Drivers
Classifications
T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version 1.41.1054.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Intel Corporation · Intel Thunderbolt 3 and 4 Windows DCH Driversversion=before version 1.41.1054.0

Published CVSS scores

6.2Intel CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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