---
id: CVE-2023-2378
title: A flaw has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6
summary: >-
  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…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-74
  - CWE-77
vendor: ui
product: er-x_firmware
affected:
  - er-x_firmware < 2.0.9
  - er-x_firmware = 2.0.9
  - er-x-sfp_firmware < 2.0.9
  - er-x-sfp_firmware = 2.0.9
patched:
  - er-x_firmware 2.0.9
  - er-x-sfp_firmware 2.0.9
published: '2023-04-28'
updated: '2026-07-09'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-2378'
references:
  - url: 'https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/4'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2023-2378'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/114072'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/227654'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/227654/cti'
    label: cna@vuldb.com
  - url: 'https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://vuldb.com/?ctiid.227654'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://vuldb.com/?id.227654'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.07621
epssPercentile: 0.94346
ingestedAt: '2026-07-10T01:55:22.894Z'
---

## Overview

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.

## Affected

- `er-x_firmware < 2.0.9`
- `er-x_firmware = 2.0.9`
- `er-x-sfp_firmware < 2.0.9`
- `er-x-sfp_firmware = 2.0.9`

## Remediation

Upgrade past the affected range:

- `er-x_firmware 2.0.9`
- `er-x-sfp_firmware 2.0.9`