Vulnerability record · CVE-2023-2378 · published 28 April 2023

CVE-2023-2378: Ui er-x firmware injection vulnerability

Ui · Er X Firmware

A flaw has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This affects an unknown function of the component Web Management Interface. This manipulation of the argument suffix-rate-up causes command injection. The attack may be initiated remotely. The exploit has been published and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor position is that post-authentication issues are not accepted as vulnerabilities.

7.3 CVSS 4.0 High EPSS 7.6% · top 5.6% CWE-74 · InjectionCWE-77 · Command injection

7.3CVSS 4.0 base score, v2 8.3

7.6%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

8References, 2 tagged exploit

9 Jul 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Er X Firmware Ui

Er X Sfp Firmware Ui

References

Link	Tags
https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/4	ExploitThird Party Advisory
https://vuldb.com/cve/CVE-2023-2378
https://vuldb.com/submit/114072
https://vuldb.com/vuln/227654
https://vuldb.com/vuln/227654/cti
https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/4	ExploitThird Party Advisory
https://vuldb.com/?ctiid.227654	Third Party Advisory
https://vuldb.com/?id.227654	Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-2378), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.