CVE-2025-21100

Privileged firmware information disclosure via improper initialization

Published May 13, 2025 · Updated May 14, 2025

Improper initialization in Intel Server D50DNP and M50FCP UEFI before R01.02.0003 allows local users to disclose information. Intel identifies the locus only as the boards' UEFI firmware and has not disclosed which state is left uninitialized or how it exposes data. Exploitation requires privileged local access and high-complexity conditions with attack requirements present, and the reported impact is limited to confidentiality.

CVSS severity5.6
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper initialization in Intel Server D50DNP and M50FCP UEFI before R01.02.0003 allows local users to disclose information. Intel identifies the locus only as the boards' UEFI firmware and has not disclosed which state is left uninitialized or how it exposes data. Exploitation requires privileged local access and high-complexity conditions with attack requirements present, and the reported impact is limited to confidentiality.

The record

CVE
CVE-2025-21100
Published
May 13, 2025
Updated
May 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-665
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 13, 2025CVE publishedPublication date reported by the CVE source.
  2. May 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.6Intel CorporationCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
4.1Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-665Improper Initialization

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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