What is CVE-2023-38034?

CVE-2023-38034 is a critical-severity vulnerability in Ubiquiti Inc Unifi Access Points, classified under Command Injection. CVSS score: 9.8/10. Published 2023-08-10.

How severe is CVE-2023-38034?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Ubiquiti Inc Unifi Access Points

CVE-2023-38034

A command injection vulnerability in the DHCP Client function of all UniFi Access Points and Switches, excluding the Switch Flex Mini, could allow a Remote Code Execution (RCE). Affected Products: All UniFi Access Points (Version 6.5.53 and earlier) All UniFi Switches (Version 6.5.32 and earlier) -USW Flex Mini excluded. Mitigation: Update UniFi Access Points to Version 6.5.62 or later. Update UniFi Switches to Version 6.5.59 or later.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-08-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.013 · change: +0.001

Affected products

Ubiquiti Inc Unifi Access Points — versions 6.5.53
Ubiquiti Inc Unifi Switches — versions 6.5.32
Ui U6\+
Ui U6-Enterprise
Ui U6-Enterprise-Iw
Ui U6-Extender
Ui U6-Iw
Ui U6-Lite
Ui U6-Lr
Ui U6-Mesh

Weakness classification (CWE)

CWE-77 — Command Injection

References

community.ui.com/releases/Security-Advisory-Bulletin-035-035/91107858-9884-44df… (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-38034?: CVE-2023-38034 is a critical-severity vulnerability in Ubiquiti Inc Unifi Access Points, classified under Command Injection. CVSS score: 9.8/10. Published 2023-08-10.
How severe is CVE-2023-38034?: Critical severity. CVSS v3 base score is 9.8 out of 10.