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Nuc7i3dnbe FirmwareOperating system · Intel

CVE-2022-26024

HIGH · 7.8 CVSS v3.1 Published 2022-11-11
Fix available
A fix is available. Upgrade to 1.78.2.0.7 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Improper access control in the Intel(R) NUC HDMI Firmware Update Tool for NUC7i3DN, NUC7i5DN and NUC7i7DN before version 1.78.2.0.7 may allow an authenticated user to potentially enable escalation of privilege via local access.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Improper access control in the Intel NUC HDMI Firmware Update Tool for specific NUC7 series devices (NUC7i3DN, NUC7i5DN, NUC7i7DN) allows an authenticated local user to escalate privileges. The vulnerability exists in versions prior to 1.78.2.0.7 and enables privilege escalation through local access.

MitigationUpdate the Intel NUC HDMI Firmware Update Tool to version 1.78.2.0.7 or later to remediate the improper access control vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Nuc7i3dnbe FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i3dnhe FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i3dnhnc FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i3dnke FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i3dnktc FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i5dnbe FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i5dnhe FirmwareOperating system
Affected:< 1.78.2.0.7
Nuc7i5dnke FirmwareOperating system
Affected:< 1.78.2.0.7

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify your NUC model
    Check the system model number on the physical device chassis or via system information (BIOS setup or OS system info). Confirm it is one of the affected NUC7 series models: NUC7i3DN, NUC7i5DN, or NUC7i7DN variants (including -be, -he, -hnc, -ke, -ktc suffixes).
    Affected if The model is a NUC7i3DN, NUC7i5DN, or NUC7i7DN variant.
  2. Locate the HDMI Firmware Update Tool
    Access the Intel NUC BIOS setup (press F2 at boot) or use Intel's firmware update utilities. The tool is part of the NUC firmware and manages HDMI firmware updates.
    Affected if The HDMI Firmware Update Tool is present on the system.
  3. Check the firmware version
    Within the Intel NUC BIOS or using Intel's firmware update tool, locate the version information for the HDMI Firmware Update component. Compare the installed version to 1.78.2.0.7.
    Affected if The installed version is lower than 1.78.2.0.7.
  4. Verify local user access exists
    Confirm that local user accounts exist on the system or that the system permits local login access. The vulnerability requires an authenticated local user to exploit the improper access control.
    Affected if Local authentication is enabled and local user accounts are present.

A system is affected if it is a NUC7i3DN, NUC7i5DN, or NUC7i7DN variant with an HDMI Firmware Update Tool version earlier than 1.78.2.0.7 and local user access is available.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.78.2.0.7 or later
Fixed in 1.78.2.0.7
Interim mitigation

Update the Intel NUC HDMI Firmware Update Tool to version 1.78.2.0.7 or later to remediate the improper access control vulnerability.

Recommended fix High confidence

1.78.2.0.7 or later

  1. Identify your specific NUC model number (e.g., Nuc7i3dnbe, Nuc7i5dnke, etc.) from the affected products list
  2. Visit the Intel support website and search for your NUC model
  3. Locate the Intel NUC HDMI Firmware Update Tool in the BIOS/Firmware downloads section
  4. Download the firmware version 1.78.2.0.7 or later for your specific model
  5. Run the firmware update tool with administrative privileges
  6. Follow the on-screen instructions to complete the firmware update
  7. Restart the system when prompted to apply the firmware changes
  8. Verify the installed firmware version matches 1.78.2.0.7 or later after reboot

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Nuc7i3dnbe Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-26024 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data