CVE-2023-2379: UI Er-X-Sfp Firmware

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability classified as critical has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This affects an unknown part of the component Web Service. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-227655.

Affected products

• UI Er-X-Sfp Firmware: before 2.0.9 (fixed in 2.0.9); version 2.0.9 only
• UI Er-X Firmware: before 2.0.9 (fixed in 2.0.9); version 2.0.9 only

Published 2023-04-28. Last modified 2026-06-17.