CVE-2021-33129

Local privilege escalation via insecure installer permissions

Published Feb 9, 2022 · Updated May 5, 2025

Incorrect default permissions in Intel Advisor before 2021.4.0 allow local users to escalate privileges through its software installer. Intel identifies the installer as the affected locus but has not disclosed which files, directories, or access-control entries receive permissions that are too broad. Exploitation requires authenticated local access, high attack complexity, and user interaction, after which the attacker can gain elevated privileges.

CVSS severity6.7
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in Intel Advisor before 2021.4.0 allow local users to escalate privileges through its software installer. Intel identifies the installer as the affected locus but has not disclosed which files, directories, or access-control entries receive permissions that are too broad. Exploitation requires authenticated local access, high attack complexity, and user interaction, after which the attacker can gain elevated privileges.

The record

CVE
CVE-2021-33129
Published
Feb 9, 2022
Updated
May 5, 2025
Vendor
Intel Corporation
Product
Intel Advisor
Classifications
CWE-276, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 9, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record 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 2021.4.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel Advisorversion=before version 2021.4.0

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NISTAV: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

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-276Incorrect Default Permissions
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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