How severe is CVE-2023-22351?

CVE-2023-22351 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2023-22351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-22351?

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

Does CVE-2023-22351 have an EU (EUVD) identifier?

Yes. CVE-2023-22351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-26514.

When was CVE-2023-22351 published?

CVE-2023-22351 was published on 2024-09-16 and last updated on 2026-06-17.

CVE-2023-22351

CVE-2023-22351 is a medium-severity vulnerability with a CVSS 3.x base score of 6.1. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 6.9
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-26514
Weakness: CWE-787
Published: 2024-09-16
Last modified: 2026-06-17

Description

Out-of-bounds write in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2023-22351?: Out-of-bounds write in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
How severe is CVE-2023-22351?: CVE-2023-22351 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2023-22351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-22351?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-22351 have an EU (EUVD) identifier?: Yes. CVE-2023-22351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-26514.
When was CVE-2023-22351 published?: CVE-2023-22351 was published on 2024-09-16 and last updated on 2026-06-17.

References

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