How severe is CVE-2023-40067?

CVE-2023-40067 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2023-40067 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-40067?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-40067 have an EU (EUVD) identifier?

Yes. CVE-2023-40067 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-44674.

When was CVE-2023-40067 published?

CVE-2023-40067 was published on 2024-08-14 and last updated on 2026-06-17.

CVE-2023-40067

CVE-2023-40067 is a medium-severity vulnerability with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-252.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v4: 5.7
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-44674
Weakness: CWE-252
Published: 2024-08-14
Last modified: 2026-06-17

Description

Unchecked return value in firmware for some Intel(R) CSME may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Frequently asked questions

What is CVE-2023-40067?: Unchecked return value in firmware for some Intel(R) CSME may allow an unauthenticated user to potentially enable escalation of privilege via physical access.
How severe is CVE-2023-40067?: CVE-2023-40067 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2023-40067 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-40067?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-40067 have an EU (EUVD) identifier?: Yes. CVE-2023-40067 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-44674.
When was CVE-2023-40067 published?: CVE-2023-40067 was published on 2024-08-14 and last updated on 2026-06-17.

References

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