8.6

CVE-2023-2374: ubiquiti edgerouter x Injection

CVSS: 8.6v4.0HighModified
Published 28-04-2023Last modified 09-07-2026

Vulnerability summary

CVE-2023-2374 is a high (CVSS 8.6) Injection vulnerability in ubiquiti edgerouter x. EPSS estimates a 6.86% chance of exploitation in the next 30 days, higher than 93.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v4.0 (CVE.org)
EPSS score
6.86%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 28-04-2023
    PublishedVulnerability first disclosed.
  2. 09-07-2026
    Last modifiedVulnerability information updated.

Description

A security flaw has been discovered in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This issue affects some unknown processing of the component Web Management Interface. Performing a manipulation of the argument ecn-down results in command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The existence of this vulnerability is still disputed at present. The vendor position is that post-authentication issues are not accepted as vulnerabilities.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

6.86%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

0.00 pp

From 6.86% on 19-09-2026

19-09-202619-10-2026
EPSS score
6.86%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Iot

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Ui2 products
  • er-x_firmware< 2.0.9 | 2.0.9 | 2.0.9:hotfix2 | 2.0.9:hotfix3 | 2.0.9:hotfix4 | 2.0.9:hotfix5 | 2.0.9:hotfix6
  • er-x-sfp_firmware< 2.0.9 | 2.0.9 | 2.0.9:hotfix2 | 2.0.9:hotfix4 | 2.0.9:hotfix5 | 2.0.9:hotfix6
Ubiquiti1 product
  • edgerouter x2.0.9-hotfix.0 | 2.0.9-hotfix.1 | 2.0.9-hotfix.2 | 2.0.9-hotfix.3 | 2.0.9-hotfix.4 | 2.0.9-hotfix.5 | 2.0.9-hotfix.6

2 vendors · 3 products

References

7 links