CVE-2024-0171
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 · uneditedDell PowerEdge Server BIOS contains an TOCTOU race condition vulnerability. A local low privileged attacker could potentially exploit this vulnerability to gain access to otherwise unauthorized resources.
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 confidenceDell PowerEdge Server BIOS contains a Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability. This creates a time window between when the system validates authorization and when it actually accesses the resource, allowing a local low-privileged attacker to exploit the race condition and gain access to otherwise restricted resources.
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< 1.8.3< 1.8.3< 1.8.3< 1.8.3< 1.3.3< 1.8.3CVSS 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
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
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 checksWork through these to decide whether this CVE applies to you.
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Identify the exact PowerEdge server modelCheck the server model number via the physical chassis label, iDRAC web interface, or by running 'racadm get System.Server.Embedded.1.ChassisSystemType' from the iDRAC command lineAffected if The model is one of: R6615, R7615, R6625, R7625, C6615, or Xc7625 - only these models are affected
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Determine the current BIOS/firmware versionAccess iDRAC web interface and navigate to Dashboard > Hardware > BIOS, or run 'racadm get BIOS.1.Attr.BiosVersion' from the command line, or check via Dell SupportAssist / System UpdateAffected if The installed firmware version is below the threshold for your specific model
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Compare version against vulnerability thresholdFor R6615, R7615, R6625, R7625, Xc7625: vulnerable if version < 1.8.3. For C6615: vulnerable if version < 1.3.3. Note that version 1.8.3 and 1.3.3 or higher are fixedAffected if Your installed version is lower than 1.8.3 (or 1.3.3 for C6615)
You are affected if you have a Dell PowerEdge R6615, R7615, R6625, R7625, C6615, or Xc7625 server running BIOS/firmware version lower than 1.8.3 (or lower than 1.3.3 for C6615).
Generated from the published advisory. Verify against your own configuration.
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 · scoped1.3.31.8.3
Apply Dell's BIOS/firmware updates for affected PowerEdge servers when released. Until patch availability, implement strict physical access controls and monitor local privileged operations for suspicious activity.
BIOS Firmware 1.8.3 (or 1.3.3 for PowerEdge C6615)
- Download the BIOS firmware update package from Dell's support site for your specific PowerEdge model
- Extract and run the firmware update utility (e.g., Dell Update Package or iDRAC Lifecycle Controller)
- Follow the on-screen instructions to apply the BIOS firmware update
- Allow the system to reboot to complete the firmware flashing process
- Verify the installed BIOS version matches the fixed release (1.8.3 for R6615/R7615/R6625/R7625/Xc7625, or 1.3.3 for C6615)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-0171 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-0171 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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