CVE-2023-28027
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 BIOS contains an improper input validation vulnerability. A local authenticated malicious user with administrator privileges may potentially exploit this vulnerability in order to modify a UEFI variable.
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 BIOS contains an improper input validation vulnerability where a local authenticated malicious user with administrator privileges may potentially exploit this vulnerability to modify a UEFI variable. This is a firmware-level privilege manipulation issue affecting Dell systems with vulnerable BIOS versions.
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< 1.26.0< 1.22.0< 1.0.20< 1.1.20< 1.12.0< 1.1.0< 1.22.0< 1.23.0CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/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 Dell Alienware system modelRun the command 'systeminfo' on Windows or check the system label/marketing name. On Linux, check 'dmidecode -s system-product-name' or look at /sys/class/dmi/id/product_nameAffected if The model is one of: Alienware Area 51m R1, Area 51m R2, Aurora R11, Aurora R12, Aurora R13, Aurora R15, M15 R2, or M15 R3
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Retrieve the current BIOS firmware versionOn Windows, run 'wmic bios get smbiosbiosversion' or check BIOS setup (F2 on boot). On Linux, run 'dmidecode -s bios-version' or check /sys/class/dmi/id/bios_versionAffected if Unable to retrieve a BIOS version, indicating firmware may be non-standard or compromised
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Compare installed version against affected thresholdsFor the identified model, compare the installed BIOS version to: Area 51m R1 < 1.26.0, Area 51m R2 < 1.22.0, Aurora R11 < 1.0.20, Aurora R12 < 1.1.20, Aurora R13 < 1.12.0, Aurora R15 < 1.1.0, M15 R2 < 1.22.0, M15 R3 < 1.23.0. Note that version comparison should treat 1.0.20 as 1.0.20, meaning versions below these thresholds are vulnerable.Affected if The installed BIOS version number is LOWER than the specified threshold for that model (e.g., 1.25.0 on Area 51m R1, or 1.0.15 on Aurora R11)
If the system is an affected Alienware model and the BIOS version is below the listed threshold, the environment is vulnerable to CVE-2023-28027.
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 · scoped1.0.201.1.01.1.20
Apply the Dell BIOS security update (vendor patch) to remediate this vulnerability. Organizations should identify affected Dell systems, verify current BIOS versions, and deploy the updated firmware following Dell's recommended update procedures.
Alienware Area 51m R1: >=1.26.0 | R2: >=1.22.0 | Aurora R11: >=1.0.20 | R12: >=1.1.20 | R13: >=1.12.0 | R15: >=1.1.0 | M15 R2: >=1.22.0 | M15 R3: >=1.23.0
- Identify your specific Alienware model and current BIOS/firmware version
- Navigate to Dell's support website (www.dell.com) and locate the drivers and downloads section for your model
- Download the latest BIOS firmware update matching your model (Area 51m R1: 1.26.0+, R2: 1.22.0+, Aurora R11: 1.0.20+, R12: 1.1.20+, R13: 1.12.0+, R15: 1.1.0+, M15 R2: 1.22.0+, M15 R3: 1.23.0+)
- Run the BIOS update executable with administrator privileges
- Follow the on-screen prompts and ensure the system remains powered throughout the update process
- Allow the system to restart and complete the BIOS update
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-28027 — 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-2023-28027 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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- Version or environment caveats, and links to real fixes
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