CVE-2023-38034

Adjacent code execution via DHCP command injection

Published Aug 10, 2023 · Updated Dec 4, 2024

Command injection in UniFi AP and Switch DHCP clients allows adjacent attackers to execute arbitrary code on affected devices. The DHCP client incorporates externally supplied DHCP data into a command without neutralizing command syntax; Ubiquiti has not identified the field, command, or function involved. Exploitation requires adjacent-network access to influence DHCP processing, and successful injection runs attacker-chosen code on the appliance.

CVSS severity8.3
High
EPSS probability1.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in UniFi AP and Switch DHCP clients allows adjacent attackers to execute arbitrary code on affected devices. The DHCP client incorporates externally supplied DHCP data into a command without neutralizing command syntax; Ubiquiti has not identified the field, command, or function involved. Exploitation requires adjacent-network access to influence DHCP processing, and successful injection runs attacker-chosen code on the appliance.

The record

CVE
CVE-2023-38034
Published
Aug 10, 2023
Updated
Dec 4, 2024
Vendor
Ubiquiti Inc.
Product
UniFi Switches
Classifications
CWE-77, T1059
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 4, 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=6.5.32 <=6.5.32

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Ubiquiti Inc. · UniFi Switchesversion=6.5.32 <=6.5.32
Ubiquiti Inc. · UniFi Access Pointsversion=6.5.53 <=6.5.53

Published CVSS scores

8.3NVDCVSS:3.0/AV:A/AC:H/PR:N/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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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