CVE-2023-28033
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 · moderate confidenceDell BIOS contains an improper input validation vulnerability that allows a local authenticated user with administrator privileges to modify UEFI variables. This could enable persistent boot-level modifications or privilege escalation by manipulating firmware settings.
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 system modelRun 'wmic computersystem get model' or check the physical system label to confirm it is an Alienware model from the Area 51m or Aurora series, or M15 R2/R3Affected if The model is not one of the affected Alienware products listed in the CVE (Area 51m R1/R2, Aurora R11/R12/R13/R15, M15 R2/R3)
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Retrieve the current BIOS firmware versionRun 'wmic bios get smbiosbiosversion' or check the BIOS version shown during system boot (press F2 to enter BIOS setup)Affected if The installed BIOS version cannot be determined or the system does not expose version information via standard Dell tools
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Compare the installed version against affected rangesCompare your BIOS version number to the fixed versions: Area 51m R1 must be >=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 >=1.23.0Affected if The installed version is LOWER than the corresponding fixed version for your specific model
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Verify UEFI variable write accessAttempt to read or write a non-critical UEFI variable using tools such as 'efivar' on Linux or firmware manipulation tools from a Windows PE environment, or check if third-party UEFI variable editing tools can modify firmware variablesAffected if UEFI variables can be modified by a local administrator account, indicating the vulnerable condition is present
The system is affected if it is an Alienware Area 51m R1/R2, Aurora R11/R12/R13/R15, or M15 R2/R3 with a BIOS version lower than the fixed version AND a local administrator can modify UEFI variables.
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 appropriate Dell BIOS firmware update for affected systems. UEFI variable integrity should be verified post-update.
Firmware updates to versions 1.26.0 (Area 51m R1), 1.22.0 (Area 51m R2), 1.0.20 (Aurora R11), 1.1.20 (Aurora R12), 1.12.0 (Aurora R13), 1.1.0 (Aurora R15), 1.22.0 (M15 R2), or 1.23.0 (M15 R3) depending on the specific model
- 1. Identify the exact Alienware model number (e.g., Alienware Area 51m R1, Alienware M15 R3, etc.)
- 2. Note the current BIOS/firmware version installed on the system
- 3. Navigate to Dell's official support website at www.dell.com
- 4. Enter the specific model name or service tag to find support drivers and downloads
- 5. Locate the BIOS/UEFI firmware update for the specific model
- 6. Download the firmware version that matches or exceeds: 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
- 7. Run the Dell firmware update utility as an administrator
- 8. Allow the system to restart and complete the BIOS update process (do not interrupt)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-28033 — 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-2023-28033 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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