What is CVE-2023-28365?

CVE-2023-28365 is a critical-severity vulnerability in Linux Kernel, classified under Command Injection. CVSS score: 9.1/10. Published 2023-07-01.

How severe is CVE-2023-28365?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Linux Kernel

CVE-2023-28365

A backup file vulnerability found in UniFi applications (Version 7.3.83 and earlier) running on Linux operating systems allows application administrators to execute malicious commands on the host device being restored.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-07-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Linux Kernel
Ubiquiti Inc. Unifi Network Application — versions 7.3.83
Ui Unifi Network Application

Weakness classification (CWE)

CWE-77 — Command Injection

References

community.ui.com/releases/Security-Advisory-Bulletin-031-031/8c85fc64-e9a8-4082… (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-28365?: CVE-2023-28365 is a critical-severity vulnerability in Linux Kernel, classified under Command Injection. CVSS score: 9.1/10. Published 2023-07-01.
How severe is CVE-2023-28365?: Critical severity. CVSS v3 base score is 9.1 out of 10.