CVE-2021-0121

Local privilege escalation via installer access control

Published Nov 17, 2021 · Updated Aug 3, 2024

Improper access control in the Intel Iris Xe MAX driver installer before 27.20.100.9466 allows local users to elevate privileges. Intel has not disclosed the installer's faulty access-control operation or the specific resource whose permissions are mishandled. Exploitation requires a low-privileged local user and user interaction, and successful exploitation compromises the host.

CVSS severity6.7
Medium
EPSS probability0.26%
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 the Intel Iris Xe MAX driver installer before 27.20.100.9466 allows local users to elevate privileges. Intel has not disclosed the installer's faulty access-control operation or the specific resource whose permissions are mishandled. Exploitation requires a low-privileged local user and user interaction, and successful exploitation compromises the host.

The record

CVE
CVE-2021-0121
Published
Nov 17, 2021
Updated
Aug 3, 2024
Vendor
Intel Corporation
Product
Intel Iris Xe MAX Dedicated Graphics Drivers for Windows 10
Classifications
T1068
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 27.20.100.9466

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel Iris Xe MAX Dedicated Graphics Drivers for Windows 10version=before version 27.20.100.9466

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.7Intel CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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