CRITICALCVSS 10.0Actively exploited · CISA KEV since 2026-06-23Vulnerability

CVE-2026-34909

Ubiquiti UniFi OS contains a path traversal vulnerability which could allow a malicious actor with access to the network to access files on the underlying system that could be manipulated to access an underlying account.

Properties

Euvd product
UDM, UDM-Pro, ENVR-Core, UniFi OS Server, UNAS-4, UCK, UNAS-2, UNVR-Instant, UCG-Fiber, udr, Express 7, UCG-Max, EFG, UCKP, UDW, UNVR, UCK-Enterprise, UDR7, UNAS-Pro-4, express, UDR-5G, ENVR, UDM-SE, UCG-Industrial, UNAS-Pro-8
Vulnerability name
Ubiquiti UniFi OS Path Traversal Vulnerability
First seen
2026-06-24T03:56:19+00:00
Cvss score
10
Epss score
0.01793
Last seen
2026-10-19T12:00:27+00:00
Due date
2026-06-26
Euvd assigner
hackerone
Retrieved at
2026-10-21T01:24:49+00:00
Exploited euvd since
2026-06-23T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2026-06-23
Euvd base score version
3.1
Score
10
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Ubiquiti Inc, Free5Gc, @clerk
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
10

Related Entities (67 · showing 24)

AFFECTS_PRODUCT (63 · showing 20)

→[Product]cpe:2.3:o:ui:unifi_cloudkey_enterprise_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unas_pro_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:enterprise_network_video_recorder_core_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unas_pro_4:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unifi_cloudkey:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_network_video_recorder_g2_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_network_video_recorder_g2_pro_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unifi_network_video_recorder_g2_pro:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unifi_dream_machine_beast:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unas_pro_8:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_dream_machine_beast_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unifi_cloud_key_plus:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:ui:unifi_cloudkey_enterprise:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_cloud_key_plus_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unas_pro_4_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_cloudkey_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unas_pro_8_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unas_2_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_dream_router_7_firmware:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:ui:unifi_dream_machine_special_edition_firmware:*:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Ubiquiti UniFi OS Path Traversal Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

INVOLVES (1)

←[Signal]kev_added · 2026-06-23

MENTIONED_IN (1)

→[Campaign]Open Season on Kapibala: Attacker Steals Over 18,000 Government Records Through WordPress Exploitation

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CVE-2026-34909 (CVSS 10) — Ninja Signal Threat Intelligence | Ninja Signal