CVE-2021-33150Known exploitation

Physical privilege escalation via runtime debug activation

Published Mar 11, 2022 · Updated May 5, 2025

Hardware debug-control exposure in Intel Trace Hub allows physically proximate attackers to escalate privileges without authentication. Affected hardware leaves test or debug logic activatable at runtime; Intel has not disclosed the specific register, interface, or state transition involved. Physical access is required, with no prior privileges or user interaction, and Intel bounds the direct impact to confidential data exposure.

CVSS severity5.3
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardware debug-control exposure in Intel Trace Hub allows physically proximate attackers to escalate privileges without authentication. Affected hardware leaves test or debug logic activatable at runtime; Intel has not disclosed the specific register, interface, or state transition involved. Physical access is required, with no prior privileges or user interaction, and Intel bounds the direct impact to confidential data exposure.

The record

CVE
CVE-2021-33150
Published
Mar 11, 2022
Updated
May 5, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Trace Hub
Classifications
Unavailable
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 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=See references

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Topcon Positioning Systems, Inc. · Intel Trace Hubversion=See references

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.3Intel CorporationCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

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)
Vectorphysical
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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.

Reported exploitation

Technologies

Your stack

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Your stack

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