CVE-2023-38587

Local privilege escalation via improper firmware input validation

Published Jan 19, 2024 · Updated Jun 17, 2025

Improper input validation in Intel NUC BIOS firmware allows local users to escalate privileges through local access. Intel has not published the affected input, firmware component, or incorrect validation operation. Exploitation requires a privileged local user and high-complexity conditions; no remote or unauthenticated path is reported.

CVSS severity7.5
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 NUC BIOS firmware allows local users to escalate privileges through local access. Intel has not published the affected input, firmware component, or incorrect validation operation. Exploitation requires a privileged local user and high-complexity conditions; no remote or unauthenticated path is reported.

The record

CVE
CVE-2023-38587
Published
Jan 19, 2024
Updated
Jun 17, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
Intel NUC BIOS Firmware
Classifications
CWE-20, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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?

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 NUC BIOS Firmwareversion=See references

Published CVSS scores

7.5Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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.

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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-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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