CVE-2021-33094

Local privilege escalation via inherited installer permissions

Published Nov 17, 2021 · Updated Aug 3, 2024

Privilege escalation in Intel KB LED Service before 1.0.0.4 allows local users to gain elevated privileges through its installer. The installer applies insecure inherited permissions, but Intel has not disclosed the affected path or permission entry. Exploitation requires authenticated local access and user interaction; successful abuse grants control at elevated privilege.

CVSS severity6.7
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

Privilege escalation in Intel KB LED Service before 1.0.0.4 allows local users to gain elevated privileges through its installer. The installer applies insecure inherited permissions, but Intel has not disclosed the affected path or permission entry. Exploitation requires authenticated local access and user interaction; successful abuse grants control at elevated privilege.

The record

CVE
CVE-2021-33094
Published
Nov 17, 2021
Updated
Aug 3, 2024
Vendor
Intel
Product
Intel KB LED Service
Classifications
CWE-732
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 1.0.0.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel · Intel KB LED Serviceversion=before version 1.0.0.4

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
6.7IntelCVSS:3.1/AV:L/AC:H/PR:L/UI:R/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

CWE-732Incorrect Permission Assignment for Critical Resource

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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