How severe is CVE-2023-23904?

CVE-2023-23904 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-2023-23904 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-2023-23904?

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

Does CVE-2023-23904 have an EU (EUVD) identifier?

Yes. CVE-2023-23904 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-27987.

When was CVE-2023-23904 published?

CVE-2023-23904 was published on 2024-09-16 and last updated on 2026-06-17.

CVE-2023-23904

CVE-2023-23904 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-395.

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-2023-27987
Weakness: CWE-395
Published: 2024-09-16
Last modified: 2026-06-17

Description

NULL pointer dereference in the 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-2023-23904?: NULL pointer dereference in the 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-2023-23904?: CVE-2023-23904 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-2023-23904 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-2023-23904?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-23904 have an EU (EUVD) identifier?: Yes. CVE-2023-23904 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-27987.
When was CVE-2023-23904 published?: CVE-2023-23904 was published on 2024-09-16 and last updated on 2026-06-17.

References

Other CWE-395 vulnerabilities

CVE-2025-58142 — Critical (CVSS 9.8): [This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to…
CVE-2025-27466 — Critical (CVSS 9.8): [This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to…
CVE-2025-15514 — High (CVSS 7.5): Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal…
CVE-2022-2832 — High (CVSS 7.5): A flaw was found in Blender 3.3.0. A null pointer dereference exists in source/blender/gpu/opengl/gl_backend.cc that…
CVE-2024-27661 — Medium (CVSS 6.5): D-Link DIR-823G A1V1.0.2B05 was discovered to contain Null-pointer dereferences in sub_4484A8(). This vulnerability…
CVE-2024-27659 — Medium (CVSS 6.5): D-Link DIR-823G A1V1.0.2B05 was discovered to contain Null-pointer dereferences in sub_42AF30(). This vulnerability…

Browse all CWE-395 vulnerabilities →