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CVE-2026-34909

CVE-2026-34909

CVSS 10 CRITICALEPSS 2.3%● KEVCWE-22
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
Ubiquiti Inc · EFGUbiquiti Inc · ENVRUbiquiti Inc · ENVR-CoreUbiquiti Inc · ExpressUbiquiti Inc · Express 7Ubiquiti Inc · UCG-FiberUbiquiti Inc · UCG-IndustrialUbiquiti Inc · UCG-MaxUbiquiti Inc · UCG-UltraUbiquiti Inc · UCKUbiquiti Inc · UCK-EnterpriseUbiquiti Inc · UCKPUbiquiti Inc · UDMUbiquiti Inc · UDM-BeastUbiquiti Inc · UDM-ProUbiquiti Inc · UDM-Pro-MaxUbiquiti Inc · UDM-SEUbiquiti Inc · UDRUbiquiti Inc · UDR-5GUbiquiti Inc · UDR7Ubiquiti Inc · UDWUbiquiti Inc · UNAS-2Ubiquiti Inc · UNAS-4Ubiquiti Inc · UNAS-ProUbiquiti Inc · UNAS-Pro-4Ubiquiti Inc · UNAS-Pro-8Ubiquiti Inc · UniFi OS ServerUbiquiti Inc · UNVRUbiquiti Inc · UNVR-G2Ubiquiti Inc · UNVR-G2-ProUbiquiti Inc · UNVR-InstantUbiquiti Inc · UNVR-Pro

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References
https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963bhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34909https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/