CVE-2023-34469

Sensitive-data disclosure via undisclosed BIOS access control

Published Sep 12, 2023 · Updated Sep 24, 2024

Improper access control in American Megatrends International Aptio V allows physically proximate attackers to disclose sensitive BIOS data. AMI identifies the locus only as BIOS and does not publish the protected resource or access-control operation that fails. Physical access and high privileges are required; successful exploitation affects confidentiality without reported integrity or availability impact.

CVSS severity4.9
Medium
EPSS probability0.24%
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 American Megatrends International Aptio V allows physically proximate attackers to disclose sensitive BIOS data. AMI identifies the locus only as BIOS and does not publish the protected resource or access-control operation that fails. Physical access and high privileges are required; successful exploitation affects confidentiality without reported integrity or availability impact.

The record

CVE
CVE-2023-34469
Published
Sep 12, 2023
Updated
Sep 24, 2024
Vendor
American Megatrends International
Product
Aptio V
Classifications
CWE-284
Attack vector
physical
Privileges
admin

Timeline

How it unfolded

  1. Sep 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 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?

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  1. Affected versionversion=*

What conditions does exploitation require?

Attack vectorphysical
Required privilegesadmin

What is affected?

American Megatrends International · Aptio Vversion=*

Published CVSS scores

4.9AMICVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
4.6NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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)
Vectorphysical
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

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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