How severe is CVE-2025-21100?

CVE-2025-21100 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-21100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-21100?

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

Does CVE-2025-21100 have an EU (EUVD) identifier?

Yes. CVE-2025-21100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14546.

When was CVE-2025-21100 published?

CVE-2025-21100 was published on 2025-05-13 and last updated on 2026-06-17.

CVE-2025-21100

CVE-2025-21100 is a medium-severity vulnerability with a CVSS 3.x base score of 4.1. 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-665.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
CVSS v4: 5.6
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14546
Weakness: CWE-665
Published: 2025-05-13
Last modified: 2026-06-17

Description

Improper initialization in the UEFI firmware for the Intel(R) Server D50DNP and M50FCP boards may allow a privileged user to potentially enable information disclosure via local access.

Frequently asked questions

What is CVE-2025-21100?: Improper initialization in the UEFI firmware for the Intel(R) Server D50DNP and M50FCP boards may allow a privileged user to potentially enable information disclosure via local access.
How severe is CVE-2025-21100?: CVE-2025-21100 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-21100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-21100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-21100 have an EU (EUVD) identifier?: Yes. CVE-2025-21100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14546.
When was CVE-2025-21100 published?: CVE-2025-21100 was published on 2025-05-13 and last updated on 2026-06-17.

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01269.html

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