CVE-2023-22312

Privilege escalation via undisclosed access-control flaw

Published May 10, 2023 · Updated Jan 27, 2025

Improper access control in Intel NUC BIOS Firmware allows local users to escalate privileges through local access on affected systems. Intel has not published the affected firmware locus or the access-control operation that mishandles privileged input. Exploitation requires existing high privileges, local access, high attack complexity, and user interaction, and can compromise confidentiality, integrity, and availability.

CVSS severity7.2
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 access control in Intel NUC BIOS Firmware allows local users to escalate privileges through local access on affected systems. Intel has not published the affected firmware locus or the access-control operation that mishandles privileged input. Exploitation requires existing high privileges, local access, high attack complexity, and user interaction, and can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2023-22312
Published
May 10, 2023
Updated
Jan 27, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
Intel NUC BIOS Firmware
Classifications
CWE-284, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:R/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.

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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-284Improper Access Control
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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