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Emc Xc Core Xcxr2 FirmwareOperating system · Dell

CVE-2024-38304

MEDIUM · 6.5 CVSS v3.1 Published 2024-08-29
Fix available
A fix is available. Upgrade to 2.22.1 / 2.22.2 or later.
See remediation →
67/100
Remediation priority · Elevated
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
Dell PowerEdge Platform, 14G Intel BIOS version(s) prior to 2.22.x, contains an Access of Memory Location After End of Buffer vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure.

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 · high confidence

Dell PowerEdge 14G Intel BIOS versions prior to 2.22.x contain a buffer over-read vulnerability (access of memory location after end of buffer). A low-privileged local attacker could exploit this to read sensitive information from memory beyond allocated buffer boundaries.

MitigationUpdate Dell PowerEdge 14G BIOS to version 2.22.x or later to remediate the vulnerability. This is a firmware-only fix; no configuration changes can mitigate it.

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
Emc Xc Core Xcxr2 FirmwareOperating system
Affected:< 2.22.1
Emc Xc Core Xc940 System FirmwareOperating system
Affected:< 2.22.2
Emc Xc Core Xc740xd2 FirmwareOperating system
Affected:< 2.22.1
Emc Xc Core Xc740xd System FirmwareOperating system
Affected:< 2.22.2
Emc Xc Core Xc640 System FirmwareOperating system
Affected:< 2.22.2
Emc Xc Core 6420 System FirmwareOperating system
Affected:< 2.22.2
Emc Storage Nx3340 FirmwareOperating system
Affected:< 2.22.2
Emc Storage Nx3240 FirmwareOperating system
Affected:< 2.22.2

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
None
Availability
None

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

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 Dell system model
    Run 'dmidecode -s system-product-name' or check the physical system label or iDRAC/BIOS setup screen for the exact model number (e.g., Xc940, Xc640, Nx3340)
    Affected if The model is not one of the listed affected products (Xcxr2, Xc940, Xc740xd2, Xc740xd, Xc640, 6420, Nx3340, Nx3240)
  2. Check the installed BIOS or system firmware version
    Run 'dmidecode -s bios-version' or access the BIOS setup (F2 during boot) to view the BIOS version, or use Dell iDRAC web interface under Server > Overview > Hardware > BIOS
    Affected if Unable to retrieve version information from the system
  3. Compare your version to affected ranges
    If you have an Xc740xd2 or Xcxr2 model, check if version is below 2.22.1. For Xc940, Xc740xd, Xc640, 6420, Nx3340, Nx3240 models, check if version is below 2.22.2. Note that versions 2.22.x or later are NOT affected regardless of the minor version number
    Affected if The installed version is a number less than 2.22.1 (for Xcxr2, Xc740xd2) or less than 2.22.2 (for Xc940, Xc740xd, Xc640, 6420, Nx3340, Nx3240)
  4. Verify firmware version reporting accuracy
    Confirm the version displayed is the BIOS/UEFI firmware and not a separate component like iDRAC or Lifecycle Controller firmware. Check iDRAC version separately with 'racadm get iDRAC.Info' if applicable
    Affected if The version retrieved is for a different firmware component (iDRAC, Lifecycle Controller) rather than the system BIOS

You are affected if your Dell system model matches one of the listed products AND your BIOS/system firmware version is below the specified threshold (2.22.1 or 2.22.2 depending on the model).

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 2.22.1 / 2.22.2 or later
Fixed in 2.22.12.22.2
Interim mitigation

Update Dell PowerEdge 14G BIOS to version 2.22.x or later to remediate the vulnerability. This is a firmware-only fix; no configuration changes can mitigate it.

Recommended fix High confidence

Firmware version 2.22.1 or 2.22.2 (model-dependent)

  1. 1. Identify the exact EMC system model from the affected list (Xcxr2, Xc940, Xc740xd2, Xc740xd, Xc640, 6420, Nx3340, Nx3240)
  2. 2. Create a backup of any critical data on the system as a precaution
  3. 3. Download the latest BIOS/firmware update from Dell's support site for your specific system model
  4. 4. Ensure the system is connected to a stable power source and do not interrupt the update process
  5. 5. Apply the firmware update using Dell's recommended process (typically via iDRAC, Lifecycle Controller, or Dell Update Package)
  6. 6. After update completion, verify the BIOS/firmware version has been updated to 2.22.1 or higher (2.22.2 for Xc940, Xc740xd, Xc640, 6420, Nx3340, Nx3240)
Caveat Firmware updates carry inherent risk; ensure stable power and follow Dell's update documentation precisely

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

Fix this in Emc Xc Core Xcxr2 Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
36.0 hours of engineering $6,400
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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-2024-38304 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