How severe is CVE-2024-21807?

CVE-2024-21807 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21807 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21807?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-21807 have an EU (EUVD) identifier?

Yes. CVE-2024-21807 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19419.

When was CVE-2024-21807 published?

CVE-2024-21807 was published on 2024-08-14 and last updated on 2026-06-17.

CVE-2024-21807

CVE-2024-21807 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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-665.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 9.3
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19419
Weakness: CWE-665
Published: 2024-08-14
Last modified: 2026-06-17

Description

Improper initialization in the Linux kernel mode driver for some Intel(R) Ethernet Network Controllers and Adapters before version 28.3 may allow an authenticated user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2024-21807?: Improper initialization in the Linux kernel mode driver for some Intel(R) Ethernet Network Controllers and Adapters before version 28.3 may allow an authenticated user to potentially enable escalation of privilege via local access.
How severe is CVE-2024-21807?: CVE-2024-21807 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21807 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-21807?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-21807 have an EU (EUVD) identifier?: Yes. CVE-2024-21807 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19419.
When was CVE-2024-21807 published?: CVE-2024-21807 was published on 2024-08-14 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00918.html

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