CVE-2023-28722

Local privilege escalation

Published Jan 19, 2024 · Updated Sep 12, 2024

Improper buffer restrictions in Intel NUC BIOS Firmware before IN0048 allow local users with privileged access to escalate privileges. Intel has not disclosed the affected firmware locus, the buffer operation performed incorrectly, or the crafted input that reaches it. Exploitation requires local privileged access on a NUC8i7INH or NUC8i5INH system and can disclose or alter data or interrupt the system.

CVSS severity6.7
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 buffer restrictions in Intel NUC BIOS Firmware before IN0048 allow local users with privileged access to escalate privileges. Intel has not disclosed the affected firmware locus, the buffer operation performed incorrectly, or the crafted input that reaches it. Exploitation requires local privileged access on a NUC8i7INH or NUC8i5INH system and can disclose or alter data or interrupt the system.

The record

CVE
CVE-2023-28722
Published
Jan 19, 2024
Updated
Sep 12, 2024
Vendor
Topcon Positioning Systems, Inc.
Product
Intel NUC BIOS Firmware
Classifications
CWE-92, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 2024Record 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=before version IN0048

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel NUC BIOS Firmwareversion=before version IN0048

Published CVSS scores

6.7Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/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.

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-92DEPRECATED: Improper Sanitization of Custom Special Characters
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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