CVE-2026-34909 — CRITICAL (10.0)

Vulnerability 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.

CVSS Score

10.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-22

References

https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4c

FAQ

What is CVE-2026-34909?

CVE-2026-34909 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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 unde...

How severe is CVE-2026-34909?

CVE-2026-34909 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-34909?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.