CVE-2021-0120

Local denial of service

Published Nov 17, 2021 · Updated Aug 3, 2024

Improper initialization in the Intel Graphics DCH Drivers installer before 27.20.100.9316 allows local users to interrupt service. Intel has not disclosed which installer state is left uninitialized or how that state reaches the failing operation. Exploitation requires an authenticated local user, and published details do not establish whether the interruption is a crash, hang, or reboot.

CVSS severity6.4
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper initialization in the Intel Graphics DCH Drivers installer before 27.20.100.9316 allows local users to interrupt service. Intel has not disclosed which installer state is left uninitialized or how that state reaches the failing operation. Exploitation requires an authenticated local user, and published details do not establish whether the interruption is a crash, hang, or reboot.

The record

CVE
CVE-2021-0120
Published
Nov 17, 2021
Updated
Aug 3, 2024
Vendor
Intel Corporation
Product
Intel Graphics DCH Drivers for Windows 10
Classifications
CWE-665, T1499
Attack vector
local
Privileges
authenticated

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 27.20.100.9316

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel Graphics DCH Drivers for Windows 10version=before version 27.20.100.9316

Published CVSS scores

6.4Intel CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-665Improper Initialization
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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