Is CVE-2023-40220 in the CISA KEV catalog?

No. CVE-2023-40220 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-40220?

CVE-2023-40220 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-40220?

CVE-2023-40220 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-40220?

Upgrade nuc6cayh firmware to ayaplcel.86a.0076 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-40220

MEDIUM

5.3

CVSS v3

NVD

Description

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

CWE-92

How to fix

Remediation Available

nuc6cayh firmwareNVD

Affected:< ayaplcel.86a.0076Fixed in:ayaplcel.86a.0076CVE-2023-40220derived from NVD

nuc6cays firmwareNVD

Affected:< ayaplcel.86a.0076Fixed in:ayaplcel.86a.0076CVE-2023-40220derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Vendor Advisory1

intel.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.