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Improper Input ValidationWeakness · CWE-20

CVE-2024-21810

HIGH · 8.8 CVSS v3.1 Published 2024-08-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
90/100
Remediation priority · Urgent
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 input validation in the Linux kernel mode driver for some Intel(R) Ethernet Network Controllers and Adapters before version 28.3 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 input validation in the Linux kernel mode driver for Intel(R) Ethernet Network Controllers and Adapters allows an authenticated local user to potentially escalate privileges by exploiting insufficient validation of input data passed through the driver.

MitigationUpdate the Intel Ethernet network driver to version 28.3 or later to obtain the patched driver with proper input validation.

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
Low
Privileges
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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 Intel Ethernet kernel driver loaded
    Run 'lsmod | grep -E "(igb|ixgbe|i40e|ice|e1000e)"' to find loaded Intel Ethernet driver modules, or check 'lspci -k | grep -A3 Ethernet' to see which network driver is in use
    Affected if An Intel Ethernet driver module is loaded and matches the driver name pattern for Intel adapters (igb, ixgbe, i40e, ice, e1000e)
  2. Get the driver version
    Check the driver version via 'modinfo <driver_name>' (e.g., modinfo igb) and look for the 'version' or 'vermagic' field, or check '/sys/class/net/*/device/driver/version' if the interface exists
    Affected if Unable to retrieve driver version information indicates the driver may not be standard Intel driver
  3. Compare driver version to fixed release
    Compare the installed driver version to version 28.3 - versions before 28.3 are vulnerable. Note that kernel driver versioning may differ from standalone driver versioning; check both module version and any packaged driver version
    Affected if Driver version is lower than 28.3 or the version cannot be determined (treat unknown versions as potentially vulnerable)
  4. Verify driver is actively handling network traffic
    Check if the driver controls a network interface using 'ip link show' or 'ip addr', and confirm the interface is UP or has traffic using 'ip -s link' or 'ethtool <interface>
    Affected if Driver is loaded but not managing any active network interface - the attack surface is reduced but driver code still present in kernel

If an Intel Ethernet driver (igb, ixgbe, i40e, ice, e1000e, etc.) is loaded with a version lower than 28.3 and controls an active network interface, the system is affected by CVE-2024-21810.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the Intel Ethernet network driver to version 28.3 or later to obtain the patched driver with proper input validation.

Recommended fix Moderate confidence

Intel Ethernet Linux kernel mode driver version 28.3 or later

  1. Identify the specific Intel Ethernet network driver in use (e.g., e1000e, igb, ixgbe, i40e, ice) using 'lsmod | grep e1000' or checking /sys filesystem
  2. Download the latest Intel Ethernet Linux driver version 28.3 or later from Intel's support website at www.intel.com/support
  3. Extract the driver package and follow the included README for installation instructions, which typically involves running 'make install' as root
  4. Reboot the system or unload/reload the driver module to activate the updated driver
  5. Verify the installed driver version matches 28.3 or later using 'modinfo <driver_name>' or 'ethtool -i <interface>'
Caveat Consult Intel's release notes for any API changes or known compatibility issues with specific kernel versions before upgrading

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

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation4.0 h
  • Testing8.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,840
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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-2024-21810 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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