Path Traversal in Ubiquiti Inc Efg
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.000 (7.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Ubiquiti Inc Efg — versions 0
- Ubiquiti Inc Envr — versions 0
- Ubiquiti Inc Envr-core — versions 0
- Ubiquiti Inc Express — versions 0
- Ubiquiti Inc Express 7 — versions 0
- Ubiquiti Inc Ucg-fiber — versions 0
- Ubiquiti Inc Ucg-industrial — versions 0
- Ubiquiti Inc Ucg-max — versions 0
- Ubiquiti Inc Ucg-ultra — versions 0
- Ubiquiti Inc Uck — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-34909?
- CVE-2026-34909 is a critical-severity vulnerability in Ubiquiti Inc Efg, classified under Path Traversal. CVSS score: 10.0/10. Published 2026-05-22.
- How severe is CVE-2026-34909?
- Critical severity. CVSS v3 base score is 10.0 out of 10.