CVE-2026-34911

highpriority · track · 0EPSS 0.007 · 52 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.68% (52nd) EPSS

CVSS 7.7 · high

Is it mine?

65 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information.

cvss

Technical severity, 0–10. One row per scoring source.

7.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.7highAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.17.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:Nsecondary · support@hackerone.comexploitability 3.1 · impact 4

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USCWE-22US

affected products (65)

Products and version ranges known to be affected.

Ubiquiti UniFi OS Server <5.0.8all versionscert_bundDE
Ubiquiti UniFi≤ OS Server <5.0.8cert_bundDE
Ubiquiti Inc EFG0 → 5.1.12enisa_euvdEU
Ubiquiti Inc ENVR0 → 5.1.12enisa_euvdEU
Ubiquiti Inc ENVR-Core0 → 5.1.12enisa_euvdEU
Ubiquiti Inc Express 70 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCG-Fiber0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCG-Industrial0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCG-Max0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCG-Ultra0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCK0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCK-Enterprise0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UCKP0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UDM0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UDM-Beast0 → 5.1.11enisa_euvdEU
Ubiquiti Inc UDM-Pro0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UDM-Pro-Max0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UDM-SE0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UDR-5G0 → 5.1.12enisa_euvdEU
Ubiquiti Inc UDR70 → 5.1.12enisa_euvdEU

showing 20 of 65

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1639Ubiquiti UniFi OS Server: Mehrere SchwachstellenDeutsch2026-05-21csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Ubiquiti UniFi OS Server ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-05-22modified 2026-07-23

references (3)

External citations — patches, advisories, analysis.

scry

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