CVE-2026-34909

critical

Description

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.

References

https://www.bleepingcomputer.com/news/security/ubiquiti-patches-three-max-severity-unifi-os-vulnerabilities/

https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b

Details

Source: Mitre, NVD

Published: 2026-05-22

Updated: 2026-05-22

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3