CVE-2021-33108

Privileged local escalation via undisclosed input validation

Published May 12, 2022 · Updated May 5, 2025

Improper input validation in Intel In-Band Manageability before 2.13.0 allows local users with high privileges to escalate privileges. Intel has not published the affected component, accepted input, or validation operation, so the concrete code-level mechanism is undisclosed. Exploitation requires local access with high privileges and can compromise confidentiality, integrity, and availability within the existing security scope.

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

Improper input validation in Intel In-Band Manageability before 2.13.0 allows local users with high privileges to escalate privileges. Intel has not published the affected component, accepted input, or validation operation, so the concrete code-level mechanism is undisclosed. Exploitation requires local access with high privileges and can compromise confidentiality, integrity, and availability within the existing security scope.

The record

CVE
CVE-2021-33108
Published
May 12, 2022
Updated
May 5, 2025
Vendor
Intel Corporation
Product
Intel In-Band Manageability
Classifications
CWE-20, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 12, 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 2.13.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Intel Corporation · Intel In-Band Manageabilityversion=before version 2.13.0

Published CVSS scores

6.7Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
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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