CVE-2021-33166

Local information disclosure via default permissions

Published Feb 9, 2022 · Updated May 5, 2025

Incorrect default permissions in all versions of Intel RXT for Chromebook allow local users to access otherwise restricted information. Intel has not identified the permissioned resource or explained how its default access controls expose the information. Local authenticated access with high privileges is required; confidentiality is affected without reported integrity or availability impact.

CVSS severity4.4
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 all versions of Intel RXT for Chromebook allow local users to access otherwise restricted information. Intel has not identified the permissioned resource or explained how its default access controls expose the information. Local authenticated access with high privileges is required; confidentiality is affected without reported integrity or availability impact.

The record

CVE
CVE-2021-33166
Published
Feb 9, 2022
Updated
May 5, 2025
Vendor
Intel Corporation
Product
Intel RXT for Chromebook
Classifications
CWE-276
Attack vector
local
Privileges
admin

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=See references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Intel Corporation · Intel RXT for Chromebookversion=See references

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
4.4Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

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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