CVE-2026-54402CWE-20

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command…

Critical · published July 2, 2026

CVSS v3.1
9.9
EPSS
2%
Percentile
77.8
In the wild
Unconfirmed
What it is

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command Injection on the host device.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01760 · 77.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-07-02T14:49Z
EPSS history
Timeline
  • 02 JUL 14:49Z
    A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command…
    cvelistv5