What’s Vulnerable › Vulnerabilities

CVE-2023-2378: Ubiquiti EdgeRouter X Web Management command injection

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-28 · updated 2026-07-09
• Weakness: CWE-74

Description

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 products

• Ui Er-X-Sfp Firmware: before 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 — fixed in 2.0.9
• Ui Er-X Firmware: before 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 — fixed in 2.0.9

How to fix

Upgrade to a fixed version: Ui Er-X-Sfp Firmware 2.0.9; Ui Er-X Firmware 2.0.9. Check the vendor advisory for mitigations.

References

• https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/4
• 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
• https://vuldb.com/?ctiid.227654
• https://vuldb.com/?id.227654

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