CVE-2023-32467

Privilege escalation via DXE out-of-bounds write

Published Jul 10, 2024 · Updated Aug 2, 2024

Out-of-bounds write in the DXE driver of Dell PowerSwitch Z9664F-ON BIOS before 1.05.10 allows local users to execute code. The DXE driver writes beyond a buffer boundary and exposes UEFI code, but Dell has not disclosed the affected function or input operation. High privileges and local authenticated access are required; successful exploitation executes code or escalates privilege in firmware context.

CVSS severity5.7
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in the DXE driver of Dell PowerSwitch Z9664F-ON BIOS before 1.05.10 allows local users to execute code. The DXE driver writes beyond a buffer boundary and exposes UEFI code, but Dell has not disclosed the affected function or input operation. High privileges and local authenticated access are required; successful exploitation executes code or escalates privilege in firmware context.

The record

CVE
CVE-2023-32467
Published
Jul 10, 2024
Updated
Aug 2, 2024
Vendor
Dell
Product
Dell PowerSwitch Z9664F-ON BIOS
Classifications
CWE-665, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=N/A <v1.05.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · Dell PowerSwitch Z9664F-ON BIOSversion=N/A <v1.05.10

Published CVSS scores

5.7DellCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
8.2NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/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.

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-665Improper Initialization
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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