How severe is CVE-2023-43490?

CVE-2023-43490 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-43490 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-43490?

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

Does CVE-2023-43490 have an EU (EUVD) identifier?

Yes. CVE-2023-43490 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-47905.

When was CVE-2023-43490 published?

CVE-2023-43490 was published on 2024-03-14 and last updated on 2026-06-17.

CVE-2023-43490

CVE-2023-43490 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-682.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-47905
Weakness: CWE-682
Published: 2024-03-14
Last modified: 2026-06-17

Description

Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D Processors with Intel(R) SGX may allow a privileged user to potentially enable information disclosure via local access.

Frequently asked questions

What is CVE-2023-43490?: Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D Processors with Intel(R) SGX may allow a privileged user to potentially enable information disclosure via local access.
How severe is CVE-2023-43490?: CVE-2023-43490 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-43490 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-43490?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-43490 have an EU (EUVD) identifier?: Yes. CVE-2023-43490 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-47905.
When was CVE-2023-43490 published?: CVE-2023-43490 was published on 2024-03-14 and last updated on 2026-06-17.

References

Other CWE-682 vulnerabilities

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