Home/CVE/Improper buffer restrictions in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable inform
CVE

CVE-2023-40220

Improper buffer restrictions in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable inform

Improper buffer restrictions in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable information disclosure via local access.

MEDIUM · CVSS 5.3 EPSS 0.0006
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-92DEPRECATED: Improper Sanitization of Custom Special Characters
▤

Affected Products & Versions

2
intel nuc6cayh firmware< ayaplcel.86a.0076
intel nuc6cays firmware< ayaplcel.86a.0076
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · secure@intel.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Nov 2023 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.htmlVendor Advisory
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