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UniFi OS CVE-2026-34911

| EUVD-2026-31387 HIGH
Path Traversal (CWE-22)
2026-05-22 hackerone GHSA-m2r4-jq7j-hchx
7.7
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Patch available
May 22, 2026 - 02:01 EUVD
Analysis Generated
May 22, 2026 - 01:44 vuln.today

DescriptionNVD

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.

AnalysisAI

Path traversal in Ubiquiti UniFi OS devices allows authenticated low-privileged network attackers to read arbitrary files on the underlying device filesystem, enabling disclosure of sensitive information such as configuration data, credentials, or cryptographic material. The flaw (CVSS 7.7, scope-changed) affects a broad fleet of UniFi gateways, cloud keys, NVRs, and NAS appliances. …

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RemediationAI

Within 24 hours: Identify all affected Ubiquiti UniFi OS devices in your environment and note current firmware versions; check Ubiquiti security advisory for complete list of affected product models and versions. Within 7 days: Implement network access controls restricting UniFi management interfaces to authorized administrator networks only; enable comprehensive audit logging on all UniFi devices; enforce least-privilege access for all user accounts with UniFi access. …

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CVE-2026-34911 vulnerability details – vuln.today

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