CVE-2021-0055

Local privilege escalation via insecure inherited permissions

Published Jun 9, 2021 · Updated Aug 3, 2024

Privilege escalation in Intel NUC 9 Extreme Laptop Kit LAN Drivers before 10.42 allows local users to gain elevated privileges. The driver package assigns insecure inherited permissions to an unspecified installed resource; Intel has not disclosed that resource or the precise write path. Exploitation requires authenticated local access and user interaction, and the resulting elevated privileges can compromise the host.

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

Privilege escalation in Intel NUC 9 Extreme Laptop Kit LAN Drivers before 10.42 allows local users to gain elevated privileges. The driver package assigns insecure inherited permissions to an unspecified installed resource; Intel has not disclosed that resource or the precise write path. Exploitation requires authenticated local access and user interaction, and the resulting elevated privileges can compromise the host.

The record

CVE
CVE-2021-0055
Published
Jun 9, 2021
Updated
Aug 3, 2024
Vendor
Intel Corporation
Product
Intel NUC 9 Extreme Laptop Kit LAN Driver
Classifications
CWE-732, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 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 10.42

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel NUC 9 Extreme Laptop Kit LAN Driverversion=before version 10.42

Published CVSS scores

6.7Intel CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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
T1068Exploitation for Privilege Escalation

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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