CVE-2023-42429
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 · uneditedImproper buffer restrictions in some Intel NUC BIOS firmware may allow a privileged user to potentially enable escalation of privilege via local access.
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 confidenceThis vulnerability in Intel NUC BIOS firmware involves improper buffer restrictions that allow a privileged local user to escalate their privileges. The flaw allows a user with already elevated (privileged) access to gain further unauthorized privileges through the BIOS interface via local system access.
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= jyglkcpx.0071= jyglkcpx.0071= jyglkcpx.0071= jyglkcpx.0071= jyglkcpx.0071= jyglkcpx.0071CVSS 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 your Intel NUC modelCheck the product label on the device chassis or boot into BIOS setup (press F2 during POST) to view the system information page showing the model number (Nuc7cjysal, Nuc7cjysamn, Nuc7cjyhn, Nuc7cjyh, Nuc7pjyhn, or Nuc7pjyh)Affected if The model matches one of the six listed affected NUC models
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Determine the installed BIOS firmware versionAccess the BIOS setup utility (F2 at boot), navigate to the Main or Advanced tab, and locate the BIOS version string; alternatively, use Intel's BIOS update utility, Intel Driver & Support Assistant, or run 'wmic bios get smbiosbiosversion' on Windows to retrieve the firmware versionAffected if The displayed firmware version is jyglkcpx.0071 exactly
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Verify the BIOS is not configured to a newer revisionCross-reference the firmware version found in step 2 against Intel's support website for the specific NUC model to confirm whether a later version than jyglkcpx.0071 has been appliedAffected if The installed version remains at jyglkcpx.0071 or no newer Intel-released firmware version has been applied
You are affected if you own one of the listed NUC models AND your current BIOS firmware version is exactly jyglkcpx.0071 (the specific vulnerable version).
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.
From vendor dataUpdate the Intel NUC BIOS firmware to the latest version provided by Intel through their official support channels.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-42429 — 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-2023-42429 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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