CVE-2025-21094

Privilege escalation via undisclosed DXE input validation

Published May 13, 2025 · Updated Feb 26, 2026

Improper input validation in Intel Server Board D50DNP and M50FCP UEFI before R01.02.0003 allows local users to escalate privileges. Intel identifies the DXE module as the locus but has not disclosed the untrusted input or the invalid operation performed on it. Exploitation requires high privileges, local access, and additional attack conditions; success crosses a security boundary and compromises confidentiality, integrity, and availability.

CVSS severity8.7
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Intel Server Board D50DNP and M50FCP UEFI before R01.02.0003 allows local users to escalate privileges. Intel identifies the DXE module as the locus but has not disclosed the untrusted input or the invalid operation performed on it. Exploitation requires high privileges, local access, and additional attack conditions; success crosses a security boundary and compromises confidentiality, integrity, and availability.

The record

CVE
CVE-2025-21094
Published
May 13, 2025
Updated
Feb 26, 2026
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Server Board D50DNP and M50FCP UEFI
Classifications
CWE-20, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=See references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel Server Board D50DNP and M50FCP UEFIversion=See references

Published CVSS scores

8.7IntelCVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
7.5IntelCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

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-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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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