Vulnerability Report

CVE-2026-34909

CISA KEV Active

Title: UniFi OS Path Traversal (Account Access)

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2026-34909.

CWE Category CWE-22

Published Date May 22, 2026

Modified Date Jul 23, 2026

Exploit Status Not Found

Score 10.0 CVSS v3.1

Exploit Probability (EPSS)

63.90%

Vulnerability Summary

CVE-2026-34909: 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.

Impacted Vendors

Reference Links

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

CVSS v3.1

Source Entity [email protected]

Severity CRITICAL

10.0

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-34909 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

July 23, 2026 MODIFIED

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June 24, 2026 MODIFIED

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May 22, 2026 MODIFIED

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Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.