CVE-2025-30185

Privileged data alteration via active debug code

Published Nov 11, 2025 · Updated Nov 11, 2025

Active debug code in Intel UEFI Reference Firmware allows local users to alter data and interrupt affected server systems. The Ring 0 kernel retains production-accessible debug functionality, but Intel has not disclosed its interface or accepted operations. Reachability requires a privileged system-software user and no interaction; exploitation permits integrity changes, privilege escalation, or service interruption.

CVSS severity8.3
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Active debug code in Intel UEFI Reference Firmware allows local users to alter data and interrupt affected server systems. The Ring 0 kernel retains production-accessible debug functionality, but Intel has not disclosed its interface or accepted operations. Reachability requires a privileged system-software user and no interaction; exploitation permits integrity changes, privilege escalation, or service interruption.

The record

CVE
CVE-2025-30185
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
Intel UEFI Reference Firmware
Classifications
CWE-489, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 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?

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  1. Affected versionversion=See references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel UEFI Reference Firmwareversion=See references

Published CVSS scores

8.3Intel CorporationCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
7.9Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/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.

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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-489Active Debug Code
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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