CVE-2022-34391
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 Client BIOS Versions prior to the remediated version contain an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.
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 confidenceDell Client BIOS versions prior to the remediated version contain an improper input validation vulnerability that allows a local authenticated malicious user to exploit via System Management Interrupt (SMI) to achieve arbitrary code execution in SMRAM (System Management RAM).
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< 2.0.6< 2.0.6CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify the system modelRun 'systeminfo' on Windows or 'dmidecode -s system-product-name' on Linux to determine if the system is a Dell Alienware Area 51 R4 or R5Affected if The system model is Dell Alienware Area 51 R4 or R5 and the BIOS version is below 2.0.6
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Retrieve the current BIOS firmware versionRun 'wmic bios get smbiosbiosversion' on Windows, 'dmidecode -s bios-version' on Linux, or check in the BIOS setup utility under the Main or Information tabAffected if The installed BIOS version number is lower than 2.0.6
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Confirm the SMI interface is accessibleVerify the System Management Interrupt is enabled by checking BIOS settings for 'SMI' or 'Management Engine' settings, or inspect system logs for SMI-related entries using 'wevtutil qe System /c:5' on WindowsAffected if SMI is enabled and the BIOS version is below the remediated version 2.0.6
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Check for local authenticated user accessReview system access controls and user account status using 'query user' on Windows or 'who' on Linux to determine if local users exist with access to trigger the SMIAffected if A local authenticated user exists and the BIOS version is below 2.0.6
A user is affected if they are running a Dell Alienware Area 51 R4 or R5 system with BIOS firmware version lower than 2.0.6 and have local authenticated access to trigger the SMI vulnerability.
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 · scoped2.0.6
Update Dell Client BIOS to the vendor-remediated version to address the improper input validation vulnerability.
BIOS version 2.0.6
- Navigate to dell.com/support and enter the specific model (Alienware Area 51 R4 or Alienware Area 51 R5) to access the product support page
- Locate the BIOS category under Drivers & Downloads
- Download the BIOS update version 2.0.6 for your specific model
- Run the downloaded BIOS update executable or use Dell Update/SupportAssist tool
- Follow the on-screen instructions and ensure the system is connected to power
- Restart the system to complete the BIOS update process
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2022-34391 — 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-2022-34391 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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