How severe is CVE-2024-21853?

CVE-2024-21853 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-21853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21853?

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

Does CVE-2024-21853 have an EU (EUVD) identifier?

Yes. CVE-2024-21853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19464.

When was CVE-2024-21853 published?

CVE-2024-21853 was published on 2024-11-13 and last updated on 2026-06-17.

CVE-2024-21853

CVE-2024-21853 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. 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-1245.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v4: 5.7
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19464
Weakness: CWE-1245
Published: 2024-11-13
Last modified: 2026-06-17

Description

Improper finite state machines (FSMs) in the hardware logic in some 4th and 5th Generation Intel(R) Xeon(R) Processors may allow an authorized user to potentially enable denial of service via local access.

Frequently asked questions

What is CVE-2024-21853?: Improper finite state machines (FSMs) in the hardware logic in some 4th and 5th Generation Intel(R) Xeon(R) Processors may allow an authorized user to potentially enable denial of service via local access.
How severe is CVE-2024-21853?: CVE-2024-21853 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-21853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-21853?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21853 have an EU (EUVD) identifier?: Yes. CVE-2024-21853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19464.
When was CVE-2024-21853 published?: CVE-2024-21853 was published on 2024-11-13 and last updated on 2026-06-17.

References

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