Vulnerability record · CVE-2023-2377 · published 28 April 2023

CVE-2023-2377: Ui er-x firmware injection vulnerability

Ui · Er X Firmware

A vulnerability was detected in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. The impacted element is an unknown function of the component Web Management Interface. The manipulation of the argument Name results in command injection. The attack can be launched remotely. The exploit is now public and may be used. There is ongoing doubt regarding the real existence of this vulnerability. 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/9	ExploitThird Party Advisory
https://vuldb.com/cve/CVE-2023-2377
https://vuldb.com/submit/114081
https://vuldb.com/vuln/227653
https://vuldb.com/vuln/227653/cti
https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/9	ExploitThird Party Advisory
https://vuldb.com/?ctiid.227653	Third Party Advisory
https://vuldb.com/?id.227653	Third Party Advisory

Track CVE-2023-2377 inside VULONE

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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-2023-2377), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.