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Improper Input ValidationWeakness · CWE-20

CVE-2024-39811

MEDIUM · 6.3 CVSS v3.1 Published 2024-11-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
63/100
Remediation priority · Elevated

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 input validation in firmware for some Intel(R) Server M20NTP Family UEFI may allow a privileged 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 input validation vulnerability in the UEFI firmware of Intel Server M20NTP Family systems allows a privileged user with local access to potentially escalate their privileges on the system.

MitigationApply the Intel firmware update for the Server M20NTP Family to address the improper input validation vulnerability.

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

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
High
Privileges
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/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 the server model
    Run 'dmidecode -s system-product-name' or check the physical server label to confirm it is an Intel Server M20NTP Family system
    Affected if The system is NOT an Intel Server M20NTP Family system (not affected)
  2. Retrieve the UEFI firmware version
    Access the UEFI setup utility during boot (press F2 or DEL) and navigate to the BIOS/UEFI Information page, or run 'dmidecode -s bios-version' from the operating system
    Affected if Unable to determine the installed firmware version (verification incomplete)
  3. Compare your firmware version
    Note the displayed UEFI firmware version and compare it against any Intel-provided firmware update for the Server M20NTP Family
    Affected if The installed firmware version is older than the corrected version provided by Intel (system may be affected)
  4. Check for privilege context
    Determine if an untrusted privileged user account with local access exists on the system
    Affected if A privileged user with local access exists and the firmware is unpatched (exploitation condition present)

The system is affected only if it is an Intel Server M20NTP Family system running UEFI firmware older than the corrected version released by Intel.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the Intel firmware update for the Server M20NTP Family to address the improper input validation vulnerability.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2024-39811 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